Galvanized Steel Pipe Steel grade: 16Mn, Q235,20# Wall thickness: 1.0mm~12mm OD: ... steel coil, galvanized steel strip, cold rolled steel coil, hot rolled steel coil, corrugated steel sheet , checkered plates, angle steel. Transport advantage: Our company and mill located in ... of China, which contains one of the five biggest ports in China, they are Tianjin port, Shanghai Port, Guangzhou Port, Qingdao ...