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.

Steel structure engineering inspection includes raw materials, welding materials, welding parts, fasteners, welding seams, bolt ball joints.

Recently, the environmental protection bureau of Shizuishan city in Ningxia has become an "ice sculpture building" and other cases of spray from fog gun trucks interfering with atmospheric environment monitoring stations have been exposed.