无缝钢管管（液压管，天衣无缝

Stainless steel Seamless pipes: used for heat exchanger, high pressure boiler, pressure container, condenser, machinery and so on. 1) Standard Specification: ASTM A312/A312M, ASME SA312/SA312M, 2) Steel Material Grades: TP304, TP304L, TP316, TP316L, 3) Surface Finish: un-polished: Annealed and Pickled Finish. Polished (Sanitary pipes): ID/OD Polished to 180 Grit (Ra<= 0.8um) to 420 Grit (Ra<= 0.4um). 4) Outside Diameter: 1/4 to 20 or 6.0mm to 530mm 5) Wall Thickness: SCH5 to SCH80 or 0.8mm to 34.0mm 6) Length: STD length 6000mm, or as per customers requirements 7) Packing: Mill's Standard Seaworthy Export Packing, by Wooden / Plywood Cases (without after-fumigation). Or, by Bundles for big size unpolished pipes.