... Standard: GB/T 3091-2001, BS1387-1985, DIN EN10025, EN10219, ASTM SCH40, ASTMSCH804. Surface Finish: Galvanized, electro galvanized, black1)Weld form ... of special specification pipe.Tianjin Sunlight Import & Export Trading Co., Ltd. is big stated own company in Tianjin which was established ... , and hot rolled/cold rolled coils as per API 5L, Astm 106, Astm A53, and Bs1387/85 standards at the most ...iew ...