Cangzhou Bohai Pipe Co., Ltd. specializing in forged 20 # flange from the difference between the production process of casting and forging flange flange 20 # flange welding different levels, such as centrifugal casting flange belongs to a flange. Centrifugal casting method of producing a precision flange flange of the more common types of casting sand casting organizations should be fine lot of sales 20 # flanges, improve the quality of many 20 # flanges, loose tissue, pores, less prone to problems such as trachoma. 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 the highest price set loose 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 # 20 # flange manufacturers _ Cangzhou Bohai Flange Co. provided by Cangzhou Bohai tube. Cangzhou Bohai Tube Co., Ltd. (www.czbh628.com) (www.hbbh628.com) strong, credible, three-way, etc. Hebei Cangzhou accumulated a large number of loyal customers. The company better work attitude and constantly improving Cangzhou Bohai innovative ideas will lead into the brilliant and you work for a better future!