None other manufacturers supply flat welding flange, welded flange standard size table, buy flat welding flange (RF) DN300PN1.6, Heze welded flange, Hebei Cang Sheng is your best choice! ! ~ Forged flange sealing surface pattern forged flange sealing surface, there are three types: planar sealing surface, uneven surface welded flange standards for pressure is not high, medium nontoxic occasions; uneven sealing surface, apply in higher pressure situations; Cang Sheng Hebei Pipe Manufacturing Co., Ltd. specializing in the production of flat welding flange, with neck flat welding steel pipe flanges, good quality and low prices! Full name with neck flat welding flange with neck flat welding steel pipe flanges English name: Slip-on referred SO with neck flat welding flange with welded flange plate is the same as the steel pipe, pipe fittings and so extends into the flange by the angle welding equipment or pipe connections with flanges. Domestic common manufacturing standards are: People's Republic of China National Standard GB / T 9116-2010 with neck flat welding steel pipe flanges (Hubbed slip-on-welding steel pipe flanges); Heze flat welding flange, Cang Sheng Pipe, Japan standard flat welding flange size from Hebei Cang Sheng Pipe Manufacturing Limited. Heze welded flange, Cang Sheng Pipe, the standard welded flange dimensions Cang Sheng Hebei Pipe Manufacturing Co., Ltd. (www.csyrb.com) (www.hbcsgj.com) this year introduced a new upgrade, the above picture is for reference Please call the telephone or pictures on this page, for the latest information, contact: Yang.