steel pipe welded, carbon steel pipe, black, hot rolled, cold rolled, good quality, competitive prices Specification:1.Item: steel pipe2.Standard: GB, API, ASTM, BS, JIS,3.Material: Q195, Q215, Q235, Q345B, X42, Gr. B4.Size: OD: 1/2-14(21mm-377mm) WT: 0.8mm-12mmWelded Pipe1) material:Q195,Q215,Q235,Q345,STK5002) standard:GB/T3091-2001,BS1387-1985,ASTM A53,API,JIS,DIN,EN3) use:used for low ...