hot-dipped galvanized steel pipe 1) material:Q195, Q215, Q235, Q345 2) ... 8mm 4) Length: 6000mm Hot-dipped galvanized steel pipe,galvanized steel pipe,galvanized steel tube1)material:Q195, Q215, Q235, ... industrial and civilian water, air, petroleum, natural gas, communication and so on.InspectionWith hydraulic testing,eddy current and infrared ... ISO9001:2000 strictly. Hot-dipped Galvanized Steel Pipe