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the size range(O.D): 40mm~300mmThe tolerance of O.D: +/-0.20mm. I.D: +/- 0.15mmthe max length: 9m.delivery condition: BK,BKS.certificate: EN10204 3.1B.steel grade: ST 37, ST 45,ST 52, SAE1026,SAE1045 and etc.

the size range(O.D): 40mm~300mmThe tolerance of O.D: +/-0.20mm. I.D: +/- 0.15mmthe max length: 9m.delivery condition: BK,BKS.certificate: EN10204 3.1B.steel grade: ST 37, ST 45,ST 52, SAE1026,SAE1045 and etc.

