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Specifications:1) Outside Diameter: 16mm - 165mm2) Wall thickness: 0.8mm - 8.0mm3) Surface finish: black, blank, bright and galvanized4) Length of each pipe: 500mm - 12,000mm5) Steel Grade: Q195 - Q235A, ST37-2, S235, S3556) Conforms to international standards, like: ASTM A53, ASTM A500, ASTM A513, BS1387
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