... and mutual benefit;we got the approval of ISO9001 and PED certificate Golden Ocean Forging Co., Ltd. is a comprehensive enterprise integrating ... and sells flanges, and we also deal with all kinds of grey or ductile castings, including gear castings, wheels, racks, ... , DIN,UNI, EN, GB, AWWA etc.Outside diameter of Flange: 75mm-1900mm,Thickness of Flange: 6mm-500mmSize: Up to 5000mmPN (Nominal Pressure ...