No matter what kind of quilting tube mill processing methods, in part surface always leave marks fine uneven, undulating valley phenomenon appeared staggered, rolling processing principle: it is a kind of pressure finishing, is the use of metallic state at room temperature, cold plastic characteristics, the use of rolling tool on the workpiece surface to exert pressure on the workpiece surface metal plastic flow, fill to the original residual low-lying valleys, whereas reach the surface roughness values ??decrease. Caused by the plastic deformation of the rolled surface of the metal, so that the surface tissue hardening and grain tapering cold, dense fibrous form, and the formation of residual stress layer, hardness and strength, thus improving the surface wear resistance, corrosion resistance and with nature. Rolling is a non-cutting method of plastic processing. Grinding quilting quilting Liaocheng tube 30 * 40 90 * 108 tube mill Liaocheng Liaocheng quilting 160 * 172 35 * 43 mill tube mill quilting Liaocheng Liaocheng tube 90 * 110 160 * 180 quilting grinding Liaocheng Liaocheng quilting tube 40 * 45 90 * 114 Liaocheng tube mill 160 * 184 quilting Liaocheng Liaocheng grinding tube 40 * 51 100 * 108 quilting grinding pipe Liaocheng Liaocheng quilting 160 * 194 50 * 55 mill tube mill quilting Liaocheng Liaocheng pipe 100 * 114 180 * 192 quilting Liaocheng Liaocheng grinding tube 50 * 60 quilting grinding tube 100 * 121 180 * 194 Liaocheng Liaocheng mill quilting quilting Liaocheng tube 50 * 63 100 * 127 mill pipe Liaocheng Liaocheng quilting 180 * 203 50 * 65 mill tube mill tube quilting Liaocheng Liaocheng 180 110 * 119 * 219 Liaocheng quilting grinding tube 50 * 70 Liaocheng quilting grinding pipe 110 * 133 200 * 216 Liaocheng Liaocheng grinding tube 55 * 65 quilting quilting grinding Liaocheng Liaocheng pipe 110 * 140 200 * 219 quilting Liaocheng Liaocheng grinding tube 55 * 70 120 * 140 quilting grinding pipe Liaocheng Liaocheng quilting grinding 200 * 240 Liaocheng quilting tube 56 * 66 120 * 146 mill pipe Liaocheng Liaocheng quilting 200 * 245 60 * 70 mill tube mill quilting Liaocheng Liaocheng pipe 125 * 135 220 * 246 quilting grinding Liaocheng Liaocheng quilting tube 60 * 75 125 * 140 Liaocheng grinding tube 220 * 273 quilting Liaocheng Liaocheng grinding tube 63 * 69 125 * 152 quilting grinding pipe Liaocheng Liaocheng quilting 250 * 270 63 * 72 mill tube mill quilting Liaocheng Liaocheng pipe 140 * 163 250 * 299 quilting Liaocheng Liaocheng grinding tube 63 * 76 140 * quilting grinding tube 168 280 * 325 Liaocheng Liaocheng quilting grinding tube mill 63 * 83 quilting Liaocheng Liaocheng tube 140 300 * 325 * 178 chat quilting grinding tube commonly used material 10 # 0.07 ~ 0.13 0.17 ~ 0.37 0.35 ~ 0.65 ≤ 0.035 ≤ 0.035 20 # 0.17 ~ 0.23 0.17 ~ 0.37 0.35 ~ 0.65 ≤ 0.035 ≤ 0.035 35 # 0.32 ~ 0.39 0.17 ~ 0.37 0.35 ~ 0.65 ≤ 0.035 ≤ 0.035 45 # 0.42 ~ 0.50 0.17 ~ 0.37 0.50 ~ 0.80 ≤ 0.035 ≤ 0.035 40cr 0.37 ~ 0.44 0.17 ~ 0.37 0.50 ~ 0.80 ≤ 0.035 ≤ 0.035 0.08 ~ 1.10 25Mn 0.22 ~ 0.2 0.17 ~ 0.37 0.70 ~ 1.00 ≤ 0.035 ≤ 0.035 ≤ 0.25 37Mn5 0.30 ~ 0.39 0.15 ~ 0.30 1.20 ~ 1.50 ≤ 0.015 ≤ 0.020 The company produced varieties specifications: bore diameter 30mm-300mm, wall thickness of 2mm-40mm. Technical conditions: bore precision H5-H10. Bore roughness Ra ≤ 0.63um, straightness ≤ 0.3mm / m. Steel is 20 # -45 #, 16Mn, 27SiMn and some low-alloy steel. Standard GB8713-88. Quilting mill production of major equipment: 350 tons full hydraulic prestressing precision drawing machines and 150 tons each one, pulling machine maximum stroke 12 m, the maximum drawing force of 350 tons. And a vertical honing machine 2, horizontal honing machine 2. Main purpose: hydraulic, pneumatic cylinder; hydraulic lines; spinning, textile and printing machinery pipe; automobile shock absorber tube; sleeve pipe; piston rod and precision steel pipe. Also available according to customer requirements: Length of pipe, honing tube and special heat pipe. Company provides the following services: * Wholesale and retail, one from the sale. * Customers can pick and choose the desired length or other requirements. * Booking, purchasing all kinds of steel products or special specifications spot. * Swap library missing specifications, eliminating the need for you to run around the procurement of hard. * Arrange transportation, large amount of hair straighteners your designated location. Now my company has a lot of quilting grinding tube, hydraulic cylinder tubes, HM tube, cylinder tube, rod tube, bearing steel, high-precision cold drawn tube stock, will be price, wholesale and retail ways, to provide you with quick quality service, welcome new and old customers to negotiate, Power Conference