Seamless rolled ring, fine machining. Forging features:1) Drop forgings, Seamless rolled ring, rough machining and fine machining. The diameter of the rings can be 6,300mm max.2) Standards: ASTM, ASME, AISI, API, UNI, DIN, SIS and EURONORM3) Material: Carbon steel , Stainless steel , Alloy steel. AISI 8620, 4320, 4130, 4140, 4340, 18CrNiMo7, 42CrMo4, A 182 F304/F316/F410, A105….4) Application : ...