... .8m to 12m Standard: GB, API, ASTM, BS, JIS Applicable : API 5L, API welded steel pipe ProductStandardODWTLengthWelded pipeGB/T3091-2001BS1387-1985ASTM A53DIN244015 ... in conveying gas,water,and oil in both oil and gas industries. chemical fertilizer pipe/ natural gas/ petroleum transportation, ... . standard:GB/T3091-2001,BS1387-1985,ASTM A53,API,JIS,DIN,EN3. Specification:10mm-630mm,wall thickness: ...