Galvanized Pipe 1.Grade:SGCC DX51D DX53D DX54D, etc ... 3.OD:10.0-165mm 4.ND:6-150mm StandardAISI, ASTM, BS, DIN, GB, JIS, etcGradeSGCC, DX51D, DX53D, ... I-Beam, Channel, Angle, H-Beam, C-Beam, Galvanized Steel Coil, Hot Rolled Steel Plate, Cold Rolled Steel ... Plate, Structure Steel, difference kind of pipes, Galvanized Steel Pipe, Seamless Steel Pipe, Square/Rectangular Steel Tube, Light/Heavy Steel ...