... T 3091-2001, BS1387-1985, DIN EN10025, EN10219, ASTM SCH40, ASTMSCH804. Surface Finish: Galvanized, electro galvanized, ... lines, production GB/T12770-2002, BS1387-1985, ASTM A-53, GB/T3091-2001 other standard pipe, complete ... has trade companies and mills in many fields, with a fixed asset of about USD16 billion. We ... /cold rolled coils as per API 5L, Astm 106, Astm A53, and Bs1387/85 standards at the ...