... Pipe 1.Technique: ERW 2.WT: 0.4-10mm 3.OD:25.4-304. ... Finish: Galvanized, electro galvanized, black1)Weld form: Longitudinal 2)Technology: ERW 3)Application: Fluid Quality standard: API 5L Gas and petroleum ... , Elongation), Technical Properties ( Bending Test, Blow Test, Impact Test), Exterior ERW Welded Steel Pipe