Precision Steel Plant, Dry million precision tubes, precision steel plant in Liaocheng million provided by the dry precision tubes. Precision Steel Plant, dry billion Precision tubes, precision steel plant is Liaocheng Liaocheng dry one hundred million Industry Co., Ltd. (www.sd304.com) 2013 been newly launched upgraded our factory is specialized in the production of hot-rolled seamless cold drawn manufacturers can According to customer requirements precision steel plant, producing a variety of precision seamless range is as follows: 1: OD: Ф15-219mm; 2: Wall thickness :1.5-25mm; 3: Surface roughness: Ra = 0.2,0.4,0.6, 0.8 4: Size Accuracy: H7 ~ H10 5: Standard: GB/3639 ─ 2000; GB/8723 ─ 99 6: Material: Material: 10 #, 20 #, 35 #, 45 #, 16Mn, 27SiMn, 12Cr1MoV, 40Cr , 10CrMo910, 15CrMo, 35CrMo, A335P22 so on. 7: Features: inner and outer diameter dimensional accuracy (tolerance) strict internal and external surface roughness, roundness, straightness, uniform thickness precision seamless tube. Production of high-precision high-tech company based in Liaocheng precision steel pipe factory, sophisticated production equipment, testing equipment, can be oxygen annealing (NBK). Annual production capacity of 25,000 tons, the quality management system, has passed the ISO9001: 2008 and TS16949: 2009 quality system certification. Company according to national standards (GB), American Standard (ASTM), German standard (DIN), Japan Standard (JIS), the European standard (EN) organization of production, product specifications outer diameter cold drawn steel pipe φ10-φ370mm, wall thickness of 1 -32mm, the technical requirements to meet the standard requirements or mutual agreement.