Cangzhou Bohai Pipe Co., Ltd. specializes in manufacturing 20 # flange blind character is generally used in the pipe, 20 # flange large favorably, in that case, loose bolt can be rotated on both sides of the pipe, then tighten the disassembly can be more convenient pipe material carbon steel flanges. Large flange connection between law also cast iron pipe and steel pipe and easiest connection method. Open character blank flange can be used to check on the mouth. In addition, 20 # flange, flanged connections from φ50-315mm suitable diameter of the tube. Its performance characteristics: non-rigid connection, removable, tensile strength. Flanged connections commonly used as low-pressure delivery pipeline removable. Cangzhou Bohai Pipe Fittings Co., GB 20 # weld neck flange Loose ring Falan Song Loose ring flange with neck butt welding flange ring Loose plate flange with weld ring Loose plate flange plate turned loose flange additional locking device in order to meet the needs of post-rational supply 20 # flanges, with the shank with a hole, the holes can not be subject to the bolt loose vibration. Some did not threaded flange bolts The light pole to meticulous, called shank flange bolts. This is conducive to the flange bolts by the variable force coupling have special high strength bolts on steel. head will enlarge some dimensions have changed galvanized round Steel is the molten metal and the reaction of the iron matrix alloy layer. Flange Standard: HG20592-2009 (PN series) \ HG20615-2009 (Calss series) low-cost direct sales 20 # flange | Cangzhou Bohai (certified) | 20 # Flange Co. provided by Cangzhou Bohai tube. Cangzhou Bohai Tube Co., Ltd. (www.czbh628.com) (www.hbbh628.com) is an industry leader in Cangzhou, Hebei, three, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. Cangzhou Bohai leadership with the staff warmly welcome all inquiries negotiations to create a better future Cangzhou Bohai.