1) Round pipe diameter: 16mm-219mm, thickness: 0.8-8.0mm
2) Surface finish: black, blank, bright and galvanized
3) Length of each pipe: 500mm-12,000mm
4) Steel grade: Q195 - Q235A, ST37-2, S235, S355, SS400
5) Conforms to international standards, like: ASTM A53, ASTM A500, ASTM A513, BS1387, JIS G3466
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