Welded Steel Pipe/Welded Steel Tube 1) OD:13--610mm 2) WT:2--50mm 3) ... : St52, St37-2, Q235, Q345, Q195, Q215L175-L555(A, Bgrade Steel, X42-X80), J55, K55, N80, L80, C90, C95, P110, Q125 ... pressure liquid delivery such as water, gas, oil and also industrial pipelines and construction. Packing: In bundle with bags, then in ...