... 3.OD:10.0-165mm 4.ND:6-150mm StandardAISI, ASTM, BS, DIN, GB, JIS, etcGradeSGCC, DX51D, DX53D, DX54D, ... difference kind of pipes, Galvanized Steel Pipe, Seamless Steel Pipe, Square/Rectangular Steel Tube, Light/Heavy Steel Rail and ect. It ... NameTianjin Shangyi Metal Structure Trade Co. LtdAddressA1905 of Future Plaza, No 103, Weidi Road, Hexi District, Tianjin, ChinaWebsitetjshangyijinshu.en.alibaba ...