Seven precautions for the string assembly and welding on the steel structure in the construction of the steel structure
1. Put on https: www.sgsbuilding.comnewsindustryIntRoduction-to-SPECIFIC-Construction-Proces-OF-STRUCTURE-CANOPY vertical rod.2. Make the vertical and horizontal rods and welded balls of the upper string of the string of the string of the string.The method of adjusting the oblique abdominal rod is that it can be cut