... 304.8mm 4.Standard: GB, BS, ASTM A53-2007, API5L Galvanized Welded Steel Pipe1. Out Diameter: 25.4mm - 304.8mm2. ... 1985, DIN EN10025, EN10219, ASTM SCH40, ASTMSCH804. Surface Finish: Galvanized, electro galvanized, black1)Weld form: Longitudinal 2)Technology: ERW 3)Application: ... range:Outer Diamter: 25.4mm - 304.8mm (1" - 24")Wall Thickness: 2.5 mm - 26mmLength: 6mtr-12mtrcoating and lining: Outside ...