Quality Commitment Letter 1 To: xxxxx Company
This letter of commitment is the proof of the delivery time guarantee provided by us for your company's xxxxx project (project number: XXXXX), and we solemnly promise that:
If we win the bid, we will supply the goods in strict accordance with the requirements of the tender documents, the unified unit price determined by the tender and the designated supply place, and meet your technical standards and equipment use requirements. If the supply is not timely, we will bear the corresponding responsibilities and accept your handling.
This letter of guarantee is valid within 180 days from the date of bid opening. If we win the bid, it will be valid until the expiration of the contract.
Name of Bidder (official seal): _ _ _ _ _ _ _ _ _ _ Signature of Bidder's Representative: _ _ _ _ _ _ _ _ _ _ _ _ Date: Year, Month and Day.
Chapter II Quality Commitment Our company promises to strictly fulfill the following commitments during the supply period of "Procurement Project of Water Supply Pipes and Fittings for Municipal Works in Bid Sections I, IV and V of Hainan Wenchang Space Launch Site Supporting Area Resettlement Project":
1. During the supply period, the price of the winning product will not be increased, and the winning price of the product is the highest price limit.
2. Our company promises that if it is found that our supply price is higher than the actual transaction price of the bidding result or does not meet the requirements and commitments of the bidding documents, our company will reduce the price to the actual transaction price within the time limit specified by the purchaser and meet the relevant commitments of the agreed supply.
3. If the winning product model is discontinued, our company will notify the purchaser in writing within 3 working days from the date of learning the relevant information.
4. Our company promises that the supply price has included goods procurement and related services (installation, debugging, use training, etc. ), all taxes and fees to be paid and all expenses required for the goods to be transported to the designated place.
5. This letter of commitment is valid within the validity period of the supply agreement.
Quality Commitment Chapter III Party A:
Party B:
Party A allows Party B to fill 15 rebar workers within three days (i.e. before June 8, 20xx). If Party B's workers are idle, Party A shall be responsible for compensating Party B's losses.
Party B promises to make eight 45m steel cages during drilling on June 10, 20xx, so as not to delay the construction of Party A's drilling rig. If Party B fails to meet the requirements, Party B is willing to compensate Party A for its losses.
Party A: Party B: Tel: Tel: ID number: ID number:
Signing time: Year Month Date Signing time: Year Month Date
In order to improve the reputation of the company's products and make customers feel at ease to use our broken-bridge aluminum doors and windows products, regardless of the specifications, models and batch sizes of the doors and windows, the company makes the following commitments on the quality of all the doors and windows products sold and installed:
1. Raw and auxiliary materials used for door and window products are put into processing and production according to the contract.
2. In the production process of door and window products, all possible means will be used to control the process to prevent inherent or hidden defects and nonconforming products.
3. The commitment to the quality of doors and windows products includes product quality and service quality. We will not only provide you with high-quality products, but also provide you with high-quality services to ensure the delivery date and after-sales service of the project.
4. All aluminum alloy doors and windows manufactured and installed by our company will be rectified if there are quality problems due to our company.
5. The warranty scope and responsibilities of the above products during the warranty period:
A the warranty period is one year from the date of completion acceptance.
B damage caused by quality problems of spare parts shall be replaced by the manufacturer free of charge.
C. in case of man-made damage, charge according to regulations.
D materials or parts specified and provided by party a are not covered by the warranty:
E. if you find any quality problems, please contact the quality assurance department of our company in time.
Quality Commitment Clause 5 1, Design Factors
(1) The existence of unreasonable cavity structure leads to the building being squeezed in and pulled out under negative wind pressure load, which leads to repeated reverse deformation of the insulation layer, but it is not effectively strengthened at the external corner during design, which eventually leads to the whole insulation layer falling off.
(2) The generation and release of stress are not considered enough, and the internal stress caused by the different elastic modulus of materials in each layer cannot be fully dispersed by using bonding mortar with insufficient flexibility, resulting in thermal expansion and cold contraction of the bonding layer. In addition, the choice of facing system is wrong, and the insulation layer and anti-cracking practice are affected by the "rigid anti-cracking technical route" in material selection and technology. All the materials used are prestressed materials with high strength and high elastic modulus, leaving no room for full release of temperature stress. Moreover, the coating adopts elastic paint with high elasticity and poor air permeability, and there is no deformation joint. Because the continuous surface of the system is too long and the accumulated deformation is too large, the coating bulge falls off.
(3) The joint design is not perfect, and no suitable fittings are used, such as expansion joint line, corner protector, preloading sealing belt, etc. Due to the large temperature difference between indoor and outdoor, concrete shrinks, which easily leads to deformation and cracks in building structures. Therefore, expansion joints should be set to disperse the damage caused by temperature stress. Expansion joint lines with glass fiber grid cloth should be used and overlapped with large area grid cloth, such as E-shaped expansion joint lines and V-shaped expansion joint lines. E-shaped expansion joint line is suitable for flat joints and V-shaped expansion joint line is suitable for corner joints.
The first floor building is prone to impact and cracks, and the impact resistance of corners can be obviously improved by using finished corner protectors.
Because most of the external window frames of buildings are made of aluminum alloy, plastic, special-shaped steel and other materials, the performance of these materials is very different from that of wall materials and external insulation system materials. Under the action of temperature stress, cracks are easy to appear at the stress concentration of window foot. Waterproof and crack prevention should adopt preloading sealing belt to facilitate flexible transition.
Before sticking the insulation board, the terminal part of the wall was not turned up with grid cloth as required, and the apron support was not used at the bottom, resulting in damage and leakage. At the bottom of the system, the distance between the lower side plate end of the first row of insulation boards and aprons should be not less than 300mm, and the lower part of the insulation system at the footrest should be provided with anti-corrosion metal brackets.
(4) Because the cutting of the insulation board is not easy to ensure the consistency with size of the hole, and the wall-penetrating pipe is only kept in the wall at the grass-roots level and does not extend out of the outer wall, there is a big gap between the insulation board and the hole. When the wind pressure is high, rainwater will be sucked along the pipe wall and leak into the external insulation system from the crack. At the same time, hot exhaust gas will shrink and deform the insulation board, which will eventually lead to cracking. Therefore, non-combustible rock wool board should be used to treat hot through-wall pipes.
(5) Due to the lack of attention from design and construction units, most bay windows and air conditioning panels are not insulated in the external thermal insulation construction of buildings at present. Due to the difference of material properties, the deformation of these uninsulated parts is different from that of insulated parts. Under the influence of external temperature difference stress, the junction of thermal insulation wall is prone to damage cracks, leading to leakage and indoor moisture regain and mildew.
2 Construction factors
(1) When pasting the insulation board, the construction personnel did not paste it according to the requirements of the specification, resulting in the phenomenon of "decal", which led to the effective pasting area of less than 40%, thus reducing the bonding force between the insulation layer and the base course and causing potential losses. There are two commonly used glue distribution schemes for insulation board: frame method and strip bonding method. Which scheme can be determined according to the flatness and verticality of the external wall. The specific specifications of the two gluing schemes are as follows:
A. Dot-box Fab glue: Apply glue with a width of about 60mm and a thickness of about 10mm around each insulation board with a spatula, and then evenly apply eight bonding points with a diameter of about 120mm and a thickness of about 10mm in the middle of the insulation board, which should be evenly arranged. Flexible facing should ensure that the effective bonding area between the bonding layer and the base reaches more than 40%, the tile facing reaches more than 60%, and a 50mm exhaust port should be reserved at the plate mouth.
B, adhesive tape: use a special trowel to coat adhesive on the back of the whole insulation board, keep the trowel at an angle of 45 with the board, and cling to the insulation board, and scrape off the residual adhesive between the serrations to form serrated adhesive tape. This bonding method is suitable for the foundation wall with good flatness.
(2) There is no reliable winter construction measures, even if the construction is forced in cold weather or rainy and snowy weather, but no anti-freezing measures are taken, which makes the hydration of the adhesive incomplete, greatly affecting the bonding strength and unable to guarantee the bonding effect of the external insulation system. When subjected to external tension, the failure interface is on the bonding surface, which does not meet the specification requirements of JG 149-20xx "Failure Interface in Insulation Board in Drawing Test".
(3) The quality of polymer mortar is unstable, the proportion of cement and sand is completely based on experience, and the mortar is not evenly mixed on site, which causes the instability of materials, affects the performance of mortar, and finally leads to cracking. The correct configuration method of polymer adhesive is to pour a certain amount of liquid material into a clean plastic bucket and add powdery adhesive while stirring with a hand-held electric stirrer. The amount of liquid added is about 20-21%of the powder; Fully stirring for 5-7 minutes until the stirring is uniform and the consistency is moderate, and standing for 5 minutes for curing; When in use, it can be used by stirring again. Remember to stir evenly. The viscosity requirement is that the newly attached insulation board does not sag, and too much water is not allowed. Note that the polymer modified binder only needs to add liquid materials, and other impurities such as cement, sand and antifreeze are not allowed to be added; Note that the prepared adhesive should be used up within 4 hours; Be sure to clean the tools in time after work.
(4) When the insulation board is pasted, there is no dislocation bite, and the staggered joint distance of the insulation board does not reach the specified standard, resulting in local joints. The whole board is not cut at the four corners of the window, and the joints between the boards are not filled with styrofoam, but with adhesive or plastering paste. The correct way to arrange the boards is as follows:
(5) In the process of pasting the glass fiber grid cloth, the gray glue should be applied first, and then the grid cloth should be laid. It is forbidden to dry lap the grid cloth, and lap it according to the lap length required by the specification, with the up-and-down direction of 80mm and the left-and-right direction of100 mm. The wall at the window foot at the four corners of the door and window hole is not inclined by 45 according to the specification requirements. Laying 200mm*300mm steel mesh, otherwise the window foot is prone to inclined cracks.
(1) Material problem of insulation board
Using inferior rock wool board, its tensile strength is too low, lower than the standard limit, which can not meet the requirements of the weight of insulation system and the load of facing layer on its strength, and eventually lead to the tensile failure of rock wool board, resulting in the overall loss of insulation layer.
Some insulation manufacturers do not pay enough attention to the quality of insulation boards, and the boards leave the factory ahead of time before aging for 42 days (some even aging for less than 10 days). When used in engineering, the plate has poor melting property, high shrinkage and large deformation, which leads to excessive shrinkage in some areas and uneven temperature difference stress, thus causing cracks between joints and even causing insulation layer to fall off.
(2) Problems of polymer mortar materials
Plastering paste is not flexible enough to disperse the stress caused by temperature change, and it shrinks greatly, which is easy to cause engineering cracks.
(3) Material problem of alkali-resistant grid cloth
When the grid cloth with low alkali-resistant fracture strength is used, its radial and latitudinal alkali-resistant tensile fracture strength can't reach 750N/50mm, which doesn't meet the current national technical standard for external thermal insulation of external walls (JG 149-20xx), and it can't effectively disperse the shrinkage pressure of the surface layer, so it is easy to produce stress concentration and crack the surface layer when the temperature and humidity change in nature. Qualified alkali-resistant grid cloth has no warp and weft, no holes and no bad coating on the surface.
(4) Material problem of anchor
Cheap, inferior, uncertified and mismatched anchors are likely to lead to serious quality and safety problems. Coupled with the wrong construction, the buried depth and anchorage number of anchor rods do not meet the requirements of design specifications, which leads to greater quality risk and is not safe at all. At present, bare nail anchors and flexible anchors can be seen everywhere on construction sites in China. The standard practice is to select the anchor bolts with appropriate specifications according to the base material, and seal the disc with mortar in time after installation. Anchor bolts usually include corrosion-resistant metal screws and plastic expansion sleeves with disks. Metal screws should be made of stainless steel or metal with anticorrosive surface. Plastic nails and plastic expansion sleeves with disks should be made of polyamide, polyethylene or polypropylene. The effective anchoring depth of the anchor bolt is not less than 25mm, and the diameter of the plastic disc is not less than 50mm. When the foundation wall is sand aerated block or fly ash aerated block, the effective anchorage depth is not less than 50 mm, and when the foundation wall is small hollow block or perforated brick, the anchorage with kink function should be adopted. The anchoring depth of the anchor is not less than 30mm; ; When the base wall is made of aerated concrete products, the effective anchorage depth should not be less than 50 mm, and the number of anchor bolts for paint and tile decoration is different. When paint finishes are used, there shall be no less than 4 anchor bolts per square meter below 20m, and no less than 7-9 anchor bolts per square meter above 20m. When brick finishes are used, there shall be no less than 6 pieces per square meter below 20m, and no less than 7-9 pieces per square meter above 20m. The number of anchor bolts shall meet the design requirements and the provisions of Technical Specification for External Thermal Insulation Engineering of Exterior Walls (JJ144-20xx).
In order to implement the government's spirit of strengthening safety in production, we will conscientiously implement the Law on Safety in Production, the Regulations on Safety Management of Hazardous Chemicals and the Measures for the Administration of Refined Oil Market of the Ministry of Commerce, further strengthen the management of refined oil market in our city, and standardize the operation behavior of gas stations. Ensure the orderly, safe and development of gas stations in the city. We will sign the following gas station safety responsibility guarantee:
First, gas stations should establish and improve the safety production management system, firmly establish the consciousness of "safety first, prevention first" and strengthen the target responsibility of safety production. Further earnestly implement the safety production management system, stop the behavior that affects the safety of gas stations, and eliminate hidden dangers in time. The stationmaster (legal representative) is the first person responsible for the safety of the gas station. He should take full responsibility for the safe operation of the gas station, urge employees to abide by the operating rules, conduct regular safety education and pre-job training for employees, strengthen daily inspection and eliminate hidden dangers. Ensure that the safety work tasks are in place and the responsibility lies with people.
Two, the gas station to organize an inspection work every month. Carefully check whether the management rules and regulations are implemented; Whether safety education has been carried out; Whether the on-site facilities are complete; Whether the fire control facilities are complete; Whether the open flame management is standardized; Whether the appearance of the station is clean and tidy; Whether hidden dangers are eliminated in time; Check whether the records are complete; Whether the rectification measures are implemented.
Three, gas stations should adhere to the principle of "safety first, prevention first" and the principle of "safety self-inspection, self-removal of hidden dangers, self-responsibility, supervision in place". Implement the responsibility system for production safety, and request the higher-level issuing authority to revoke the relevant certificate in case of violation of the provisions of the responsibility certificate and accidents.
Party A: ×× police station
Party B:
date month year
Quality Commitment Article 7 Labor Commitment Letter of Reinforcement Team
(Commitment) The reinforcement team of Tianrun Labor Service Company follows the principles of voluntariness, equality, mutual benefit and sincere cooperation according to relevant laws and regulations. Now, the labor service company subcontracts the reinforcement works of the two #, three # and four # * * * buildings of the century-old project to the reinforcement team for construction. In order to ensure the smooth completion of the project on time, with good quality and quantity, through friendly negotiation, the project department and the labor service company signed the following commitments to the reinforcement team, hoping that the reinforcement team would strictly abide by them.
I. Overview of commitments
1. Project name: Buildings 2, 3 and 4 of Qiangfa Centennial Project.
2. Project Location: Shiyang Road, Chen Jiaping.
3. Engineering quality standard: qualified
4. Safety construction standard: "five noes" of major construction accidents (no death, no serious injury, no collapse, no poisoning, no fire,
First-class safety and civilized qualified construction site).
Second, the scope of commitment.
1, this project is subject to the contract signed by Tianrun Labor Service Company and the steel reinforcement team (the contractor does not include materials, and the safety and quality are guaranteed.
Package time limit for a project, civilized construction, package acceptance). The rebar team shall carry out the construction according to the design drawings (including the blue prints.the design, notice of design change and modification) provided by the project department and the requirements of construction specifications, which belong to the horizontal transportation of rebar materials and the vertical transportation of building height in all rebar processing and construction sites, as well as the turnover and installation of various machines and tools on site. The reinforcement group is responsible for drawing reinforcement according to the design drawings, making a good material plan, and carrying out construction according to the drawings and relevant specifications. And according to the site construction building number, submit the specification, model and quantity list of reinforcement to the project department, and all contracted projects must meet the quality acceptance standards.
Third, the commitment period
According to the construction period instruction of the project department, the construction period starts from March 26th, 20xx and ends on August 30th, 20xx, with a total construction period of 130 days. Construction shall be carried out at the place designated by the project department. The construction period must meet the requirements of the project department, and it must be completed in accordance with the adjustment plan of the project department under special circumstances. If the reinforcement team can't meet the progress requirements of the project department, the project department has the right to entrust a third party to insert the construction, and the reinforcement team is responsible for paying all the expenses.
Fourth, the commitment unit price
According to the contract signed by Tianrun Labor Service Company and the steel reinforcement team, the unit price remains unchanged.
V. Strengthening team responsibility
1. The project department designates the builder to be responsible for the steel bar team. All the construction personnel of the steel bar team must obey the technical guidance of the builder of the project department. The builder of the project department has the right to punish the steel bar team for wasting materials and not complying with the specifications and safety operation procedures.
2, steel team package all the tools used in the process of steel construction.
3. When the reinforcement team comes into construction, there must be professional technicians and quality assurance personnel engaged in the construction of this type of work. In the process of construction, do a good job in quality, technology and safety supervision of various projects to ensure quality and safety, correct problems in time and ensure the normal construction of the project.
4. Reinforced team members must use reasonable materials for construction. If the on-site management personnel of the project department find that the construction personnel of the reinforcement team improperly use redundant materials or deliberately waste materials during the construction process, Party B shall bear all the wasted expenses.
5. If the reinforcement team is unqualified or fails to meet the progress requirements due to poor construction technology, poor management or insufficient manpower, the project department has the right to terminate this construction contract and order the reinforcement team to leave. The unqualified reinforcement team shall compensate all losses caused by the project department. If the reinforcement team can't meet the construction period requirements of the project department, the project department has the right to insert other personnel for construction, and all expenses incurred shall be borne by the reinforcement team.
6. In case of work-related injury due to violation of regulations, the medical expenses and subsidies incurred shall be implemented according to the contract signed by Tianrun Labor Service Company and Zhongtai Construction Group Co., Ltd., and the project department shall treat it as breach of contract and punish it according to 50% of the total accident expenses.
7. Due to the reinforcement team, the project department that the reinforcement team exits by itself will not settle accounts, and the reinforcement team will be responsible for all losses caused.
Quality commitment of intransitive verbs
1. Reinforcement blanking: The length, width and height dimensions must meet the requirements of drawings and construction specifications, and the surplus materials should be comprehensively utilized to the maximum extent, so as to control the reinforcement loss rate within the contract scope.
2. Steel bar stacking: All raw materials, semi-finished products and finished products shall be leveled to prevent excessive deformation and pollution, and shall be marked with identification plates according to different specifications, models and components.
3. Reinforcement binding: It must meet the requirements of drawings and construction specifications for lap length, anchorage length, hook length angle, spacing, binding step, staggered lap area and protective layer. All losses caused by this shall be borne by the reinforcement team.
4. Reinforcement positioning: It must meet the requirements of technical disclosure and construction specifications, and meet the requirements of non-deviation of main reinforcement.
5, steel shift workers in the construction, the team leader must personally shift arrangement work, familiar with drawings, careful construction, correct operation.
Conduct technical disclosure and safety education for workers to ensure the smooth completion of this project on time, with good quality and quantity. Each worker must have rich professional experience in steel bar operation (steel bar welder must have post operation certificate) before carrying out construction of this type of work. After the construction of each part is completed, the on-site person in charge of the reinforcement team must conduct process acceptance in conjunction with the on-site builder of the project department. After the acceptance of both parties, the reinforcement team can carry out the construction of the next working procedure.
6, in the process of construction, must closely follow up with other types of work. Otherwise, the cost of quantity loss caused by the reinforcement team shall be compensated according to the price. Ensure that all subdivisional work of this project can meet the requirements at the time of acceptance. If the quality fails to meet the requirements and the construction period is delayed, all expenses shall be borne by the reinforcement team.
Seven, civilized construction commitment
1. All construction workers who enter the site must register with the project department, pass the three-level education and examination for new workers, and can only take up their posts after passing the examination. In the process of construction, they must abide by all kinds of safety rules and regulations. When entering the construction site, you must wear a safety helmet, no slippers, no drinking, no homework and no throwing things at high altitude. When working at height, they must fasten their seat belts. Party B shall be responsible for all the consequences if it violates the safety operation regulations and causes casualties to itself or others.
2, stop using construction machines and tools to cut off the power supply, to avoid accidents.
3. All construction machinery and electrical appliances on the construction site shall not be altered or dismantled without authorization. Take good care of construction machinery. When electrical appliances or machinery need to be repaired, they can only be used after being checked and repaired by the electrician of the project department. Otherwise, all expenses arising from the accident shall be borne by the reinforcement team.
4. After the completion of each working procedure, the steel bar team should be cleaned up in time. If it takes more than half a day, the project department will send cleaners to clean it up, and the corresponding expenses will be paid by the reinforcement team.
5. Tianrun Labor Service Company will provide free accommodation for the construction workers who are reinforced with the team. The management of Tianrun Labor Service Company will arrange for them to stay at the designated dormitory number.
Eight. Commitment, responsibility and punishment
1, in the process of flow production, it must be carried out according to the progress of the project, and the steel team can't keep up with or don't start work due to reasons such as working face more or less, otherwise it will be fined according to 20% of the working face amount.
2, do not participate in safety training or do not do the construction technical quality and safety disclosure personnel can't enter the construction site construction, otherwise the steel team will be fined one thousand yuan each.
3. All steel workers are not allowed to fight and make trouble in the construction site or work shed. Otherwise, both sides of the fight will be fined 1000 yuan each time, and all related expenses will be paid. The fine shall be paid by the reinforcement team, and the serious cases shall be sent to the public security organ for handling.
4, without the consent of the project department, shall not bring outsiders to the site accommodation, otherwise, each person per night fine 100 yuan, all accidents shall be the responsibility of the reinforcement team; In the dormitory, I found that everyone was fined 500 yuan every time; at the scene
And urinating around the dormitory, and found that each person was fined 100 yuan each time.
Nine, the project payment method
1. The payment for this project shall be subject to the agreement signed between Zhongtai Company and Tianrun Labor Service Company.
2. The quantities shall be jointly confirmed by the labor service company and the on-site personnel of the reinforcement team, and the project department can assist if necessary.
X. others
1. The reinforcement team must sign a labor service agreement with each worker in triplicate within three days after entering the site, and hand in the goods.
Copy of the head office. If the labor service agreement is not signed after three days of entry, the project department may impose a fine of 500 yuan/person on the reinforcement team in addition to ordering the reinforcement team to sign the agreement within a time limit.
2, the team shall not arbitrarily command tower crane, hanging any materials, offenders all accidents shall be the responsibility of the team; and
Give punishment; Strictly implement the safety operation procedures of tower crane operators and operate according to the requirements of safety technical disclosure. Ensure the safety of life and property of operators on the construction site.
3. The team must attend all regular meetings stipulated by the project department. For any reason, the participants will be punished every time 100 ~ 500 yuan.
4. If the terms and items not included in this commitment appear in the project, or the project is inconsistent with the requirements of the actual drawings,
It shall be settled by both parties through consultation. This undertaking is made in triplicate, two for the project department and one for the reinforcement team. The commitment shall come into effect from the date of signature, and shall naturally expire after the completion of the project.
Tianrun Labor Service Company (Seal):
Commitment of reinforcement team (signature):
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