... Pipe 1.OD: 8''-36'' (219mm-914mm)WT: SCH10-SCHXXS. 2.Materials: 10#, 20#,45#,16Mn, GRB, Q345B, ... X42-56 1 Production technology: Hot-expanding Advantage: This kind of steel pipe is with low ... SCH10-SCHXXS4 Materials: 10#, 20#,45#,16Mn, GRB, Q345B, X42-56, ST44, ST52 etc.5 Testing: Eddy ... pipes, welded pipes,API pipes ,Square steel pipe ,high pressure cylinder tubes etc,which are of ...