welded steel pipe O.D.:15-630mm ... ASTM, BS, JIS Applicable : API 5L, API welded steel pipe ProductStandardODWTLengthWelded pipeGB/T3091-2001BS1387-1985ASTM A53DIN244015 – 630mm 0.5 ... ,API,JIS,DIN,EN3. Specification:10mm-630mm,wall thickness:0.5mm to 14mm length:5.8m ... Packing:Hexagonal packing, each bundle with several steel strips and nylon slings or according to the ... of our products: welded steel pipe