Dry million precision tubes, light tube] [40cr finishing, finishing bright tubes million provided by the dry precision tubes. We are doing one hundred million Liaocheng Industry Co., Ltd. (www.sd304.com) located at: Shandong Liaocheng professional: precision steel tubes, precision tubes, precision seamless tube, precision seamless Our factory is specialized in the production of hot-rolled seamless cold drawn pipe manufacturers, according to customer requirements, 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: dimensional 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) strictly on the 20th finishing light tubes, inside and outside surface roughness, roundness, straightness, uniform thickness precision seamless tube. Liaocheng dry one hundred million Industry Co., Ltd. (Silver Sheng materials) mainly produces cold-rolled precision seamless steel tubes for hydraulic cylinders, tubing, and other fields. The full range of specifications, sophisticated processing; another produces a variety of rod 40cr finishing light pipe, light pipe finishing products of good quality, price concessions. Dozens of varieties of existing products either you buy. Long-term and always adhere to the "quality first, honesty first" light pipe 45, finishing, quality service, flexible business model to develop new markets; in the new and old customers to help support, growing stronger and larger areas in Shandong pipe, rod production and management company. Honesty is the life that you need is our Founding of this! Welcome new and old customers to inquire to discuss cooperation!