hot-dipped galvanized steel pipe 1) material:Q195, Q215, Q235, Q345 2) O.D: ... .T:0.8-8mm 4) Length: 6000mm Hot-dipped galvanized steel pipe,galvanized steel pipe,galvanized steel tube1)material:Q195, Q215, Q235, Q3452)O.D:20 ... -219mm3)W.T:0.8-8mm Commoditygalvanized steel pipeOuter diameter20~219mmWall ...