Cangzhou Bohai Pipe Fittings Co., Ltd. 20 # forging flange made flange cutting board cutting directly in the processing capacity of the left inner and outer diameters and thickness of the disk flange, and then machining the bolt holes and waterline. This produced a flange cutting system called maximum diameter of the flange such flange plate of width limit. Cangzhou Bohai Pipe Co., Ltd. specializing in the production of 20 # flange Blind Blind in appearance, generally divided into flat plate blind, 8-word blind plate, flapper, and the grommet (flapper and grommet blind pass each other) . Production process collapsed edit this section generally divided into four categories: forging, casting and forging, plate cutting, casting. Which forged products offer the highest price of 20 # flange, plate, followed by casting and forging minimum. The casting is a process most of the times. The quality is good and the board of forging, casting and forging to be somewhat less. 20 # flange price, Cangzhou Bohai (certification), 20 # flange provided by Pipe Co., Ltd. Cangzhou Bohai. 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.