Recently, the national grid and steel structure quality inspection center completed the inspection of raw materials for the grid project of the refueling and gas filling station of Anhui Dachang metal materials co., ltd.

This test is mainly based on JG/T 10-2009 "Steel Grid Bolted Ball Joints" and other standards. The test samples are mainly rod-ball composite specimens, and the test items are mainly tensile tests.

Through the tensile test, it is mainly tested whether the overall tensile strength of the rod-ball combination specimen meets the standard requirements, further strengthen the product quality control of bolt-ball joint parts, and strictly control the quality of raw materials entering the factory and processing technology.