... on time4)your drawing is welcomeNAME: forging ringSIZE: Ring forging/forged ring/annular forging/gear forging/steel sleeve/steel sylinder ... : ANSI, JIS, BS, DIN, UNI, EN, GB, AWWA, API Certification: ISO19001-2008, ISO14001:2004,GB/T28001-2001(OHS18001:1999 ... ~400400~300010000 or lesshigh temperature alloy steelRing forging/forged ring/annular forging/gear forging/steel sleeve/steel sylinder Diameter ...