... , electro galvanized, black1)Weld form: Longitudinal 2)Technology: ERW 3)Application: Fluid 4)Certification: CE, ... 0mm-20.0mm1.0m-12.0mOur Advantage My company has many production lines, production GB ... /T12770-2002, BS1387-1985, ASTM A-53, GB/T3091-2001 other standard pipe, ... special specification pipe.Tianjin Sunlight Import & Export Trading Co., Ltd. is big stated own company in Tianjin ...