Our company, Dingxiang Rongxin Machining Co., Ltd,, has been producing forged steel flanges and pipe fittings for more than thirty years in Dingxiang, Well-known as the forging town of China. Our exported forging steel flanges cover welding neck, lap joint, socket welding, slip on, threaded, blind, plate and etc, size from 1/2 inches to 80 inches, standards inculding ANSI, BS, DIN, UNI, AWWA, JIS, NS, MSS, API, GB, JB, HG, and non-standard products according to the drawings of clients.Our winder power tower of flanges take standard of Q/140921AYDZ001-2007, size from D2200mm to D5000mm, we...