Polygram Liaocheng Liaocheng Steel Pipe Manufacturing Co., Ltd. is located in the Economic Development Zone, location precision steel plant in Shandong, North Rinzai Handan Expressway, west of Beijing-Kowloon Railway and convenient transportation. Shandong seamless steel pipe factory is a professional commitment to seamless pipe sales company, annual distribution Chengdu, Baosteel, Anshan, Tianjin, Ye Xining Steel and other major steel production of seamless pipe. Main products: steel pipe, seamless pipe, steel pipe, fluid pipe, structural steel and various high pressure boiler tubes, fertilizer, petroleum cracking tubes, pipes and other structures. Standard: The general structure of seamless steel pipe: (GB / T8162-1999) transmission fluid with seamless steel pipe: (GB / T8163-1999) low-pressure boiler seamless steel pipe: (GB / T3087-1999) high-pressure boiler seamless steel pipe: (GB / T5310-1995) fertilizer seamless steel pipe: (GB / T6479-2000) petroleum cracking seamless steel pipe: (GB / T9948-1988) ship dedicated pipe: (GB / T5312-1998), etc. Over the years, my company, "high quality efficient, compliance heavy reputation" business philosophy to the new and old customers with quality products and service. With a good reputation and solid strength, quality products oval precision steel tubes, low prices to new and old customers sincere cooperation, create great weekends and holidays. All pipes are attached or single copies of the original material, the agency acceptances. The company can be customized various non-standard shaped steel! Hot-rolled (extruded seamless pipe) production process round tube → heating → perforation → three-roll rolling, rolling or extrusion → → set off pipe diameter (or reducing) → cooling → straightening → hydrostatic test ( or testing) → mark → storage seamless steel ingot is made of perforated or solid through the capillary tube, and then by the hot-rolled, cold-rolled or cold call is made. Seamless steel pipe wall thickness specifications mm diameter * number indicates. Hot and cold rolled seamless steel pipe points (written) seamless steel categories. Hot-rolled seamless steel pipe sub-normal, low, medium pressure boiler pipe, high pressure boiler pipe, steel pipe, stainless steel pipe, oil cracking pipe, steel and other steel and other geological. Hot-rolled seamless pipe diameter is generally greater than 32mm, wall thickness 2.5-200mm, cold-rolled seamless steel pipe at the path can go to 6mm, wall thickness can be 0.25mm, outer diameter thin-walled tube to 5mm thickness less than 0.25mm, cold than hot-rolled high dimensional accuracy. Seamless is 10,20,30,35,45 and other high quality carbon steel 16Mn, 5MnV low-alloy structural steel or 40Cr, 30CrMnSi, 45Mn2,40MnB such as structural steel hot-rolled or cold-rolled steel. 10,20 and other low-carbon steel seamless pipe is mainly used for fluid pipes. Seamless 45,40Cr etc. made of carbon steel used to manufacture mechanical parts, such as cars, tractors and the force components. General seamless steel pipes to ensure the strength and flattening test. Hot-rolled steel hot-rolled state or heat treatment delivery; Hot, by definition Liaocheng precision steel tubes, high temperature rolling, so the deformation resistance, can achieve a large deformation. The steel rolling, for example, generally slab thickness of about 230mm, and after roughing and finishing, final thickness of 1 ~ 20mm. Meanwhile, due to the small plate thickness ratio, dimensional accuracy requirements are relatively low, flatness problem is not prone to control crown based. Shandong Liaocheng Polygram Pipe Manufacturing Co., Ltd. mainly produces all kinds of materials such as steel: 20 #, 35 #, 45 #, 20G, 20A, 40Mn2,45Mn2,27SiMn, 40MnB, 20MnVB, 20Cr, 30Cr, 35Cr, 40Cr, 45Cr, 50Cr, 38CrSi, 12CrMo, 20CrMo, 35CrMo, 42CrMo, 12CrMoV, 12Cr1MoV, 38CrMoAL, 50CrV, 20CrMnSi, 30CrMnSi, 35CrMnSi, 20CrMnTi, 30CrMnTi, 12CrNi2, 12CrNi3,12Cr2Ni4,40CrNiMoA, 45CrNiMoVA, 20G, 20MnG, 25MnG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB, 12Cr3MoVSiTiB Liaocheng and other precision steel plant _ triangle precision steel (certified) _ Precision Steel provided by Shandong Liaocheng Steel Pipe Manufacturing Co., Polygram. Shandong Liaocheng Polygram Pipe Manufacturing Co. (www.lcbljgg.com) (www.lcbljgg.com) (www.sdlcblj.com) (www.bljggzz.com) Shandong Liaocheng, wire, pipe, plate manufacturing equipment leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Polygram steel leader with the staff warmly welcome all inquiries negotiations to create Polygram steel a better future.