The China Nut connection detection specification is as follows:
- Steel structural types of bolts generally need to meet the steel structure GB / T1228-1991 standard requirements.
2, steel structure with high strength hexagle bolts, inner hex bolts, large hex nuts, gasket type bolts, should meet GB1231-1991 specification.
- For the secondary type of the torque shear high-strength connection with the steel structure, the technical summation and specification should be met to GB3633-1983.
- The technical standards and specifications that steel structures should be satisfied with the technical standards and specifications of GB / T1230-1991.
- The technical specifications that need to meet the high-strength steel grid ball nodes are GB / T16939-1997.
Bolt Factory's high-intensity in the steel structure should be very common in the steel structure. It is necessary to meet the procurement of the purchaser to consider, in order to ensure the safety of steel structural builders, and it is necessary to ensure the safety of steel structures. Its standard is a comprehensive test.
