Guardrails are usually made of steel, such as stainless steel, round steel pipe, square steel pipe or profiled steel plate and iron wire. Surface treatment process: automatic electrostatic powder spraying (that is, plastic spraying) or painting. In recent years, plug-in assembled guardrail made of aluminum alloy is also very popular. The column of the guardrail is fixed on the ground by expansion bolts. It is usually installed on both sides of the logistics channel, around the production equipment, in the corner of the building, on both sides of the door and on the edge of the cargo platform. Effectively reduce the damage of equipment and facilities caused by accidental impact when handling equipment shuttles back and forth. Guardrail materials include: aluminum alloy, Masteel (nodular cast iron), carbon steel (sprayed or galvanized), stainless steel, plastic steel, zinc steel, PVC and other metal guardrails. In addition, it also protects the logistics handling equipment itself. (For example, the guardrail at the edge of the loading and unloading platform can prevent the forklift from accidentally falling).

Guardrails are widely used in the maintenance of municipal engineering, transportation, residential areas, ports, airports and storage areas. These products are becoming more and more mature and become an important branch of the building materials industry, with the scale of the industry expanding and more and more styles. Guardrails can be divided into roadside guardrails, central isolation guardrails and special site guardrails according to different places of use; According to the structure, it can be divided into flexible guardrails, semi-rigid guardrails and rigid guardrails. According to the materials of guardrails, there are iron guardrails, stone guardrails, PVC guardrails, wooden guardrails, cement guardrails, plastic steel guardrails, stainless steel guardrails and glass guardrails. According to the function and use of guardrails, there are balcony guardrails, stair guardrails, air-conditioning guardrails, residential guardrails, villa guardrails, burglar-proof guardrails and stadium guardrails. According to the decorative features of guardrails, there are artistic guardrails, wrought iron guardrails, panoramic guardrails, bay window guardrails, grating guardrails, American guardrails and European guardrails. Classification by appearance: double-sided wire fence, frame fence, double-ring fence, Meg fence, crocheted fence and steel fence.