DN600PN25 mass production of carbon steel welded flange welded flange, DN600 PN25 quality carbon steel welded flange This standard specifies the technical conditions of a pressure mark into PN mark and Class tags. PN labeled with 12 pressure levels are: PN2.5; PN6; PN10; PN16; PN25; PN40; PN63; PN100; PN160; PN250; PN320; PN400 factory outlets welded flange welded flange DN100 quality first, DN250 * 8 welded flange wholesale Cang Sheng Hebei Pipe Manufacturing Co., Ltd. specializes in producing steel welded flange welded flange 1CrMo design, welded flange is a pipe means with a neck and a tube transition and the tube butt weld flanges. Production process forging, casting, scooters made in connection form side welding, double-sided nuts. DN100 welded flange quality first, Cang Sheng Pipe (certified), Zigong welded flange provided Cang Sheng Hebei Pipe Manufacturing Co., Ltd. from. Cang Sheng Hebei Pipe Manufacturing Co., Ltd. (www.csyrb.com) (www.hbcsgj.com) Hebei Cangzhou, elbow leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. Cang Sheng Pipe leadership with the staff warmly welcome all inquiries negotiations to create Cang Sheng Pipe better future.