Product : steel pipe ,weld steel pipe 1) Standard: ASTM DIN a) O.D : 16 - 610mm ... : Surface finish: black, blank, bright and galvanized C: Length of each pipe: 500mm-16,000mm D: Steel grade: Q195 - Q235A, ST37-2 ... , DIN2391, DIN2394, DIN17175, JIS G3452, EN10210, EN10305 et Hot deep Galvanized Steel pipe