... automatic welding, hot dip galvanization and powder coating. We owned advanced production-line, it included Flatting machine, Steel plate shearer, ... closed up machine, submerged arc welding machine and powder coating line, and our workmanship and quality control was achieved high ... A36,minimum yield strength>=235n/mm2As well as Hot rolled coil from Q460 ,ASTM573 GR65, GR50 ,SS400, SS490ST52Torlance of ...