steel pipe(plain end) Size:1/2"-48" Material:A234-WPB,A420-WPL6,A234-WP12,A234-WP11,A234-WP5 1.We can produce carbon steel pipes. 2. OD:21.3~457mm WT: 2.77~45.24mm 3. Certificate: API&ISO 4.Length:5~12m 5.Standard:DIN 6.Material:DIN1626 DIN17175 steel pipe(plain end)