If the chief supervision engineer doesn't ask, the punishment for the supervision unit is:
According to the State Council's Regulations on Quality Management of Construction Projects:
4) Anyone who commits one of the following acts shall be ordered to make corrections, fined more than 500,000 yuan 1 10,000 yuan, reduced in qualification level or revoked in qualification certificate, and the illegal income shall be confiscated; If losses are caused, they shall be jointly liable for compensation:
(a) collusion with the construction unit or the construction unit, fraud, reduce the quality of the project;
(2) signing unqualified construction projects, building materials, building components and equipment as qualified.
The punishment for the construction unit is:
People's Republic of China (PRC) building law
Article 74 If a construction enterprise cuts corners during construction, uses unqualified building materials, building components and equipment, or commits other acts that do not conform to the engineering design drawings or construction technical standards, it shall be ordered to make corrections and be fined; If the circumstances are serious, it shall be ordered to suspend business for rectification, lower its qualification level or revoke its qualification certificate; If the quality of a construction project does not meet the prescribed quality standards, it shall be responsible for rework and repair, and compensate for the losses caused thereby; If a crime is constituted, criminal responsibility shall be investigated according to law.