Material: (invar36) Alloy steel Standard: ASTM, ASME, DIN, SIS, GB, EURONORM Deformation: Hot ... to manufacture kinds of ringlike&cylindrical forgings including non-standard flanges, wind power flanges, gear rims, wind power main shafts, etc. Which ... applied in Industries of petroleum, machinery, engineering, harbor machinery, gear, reducer machinery, hydraulic machinery and wind generating set etc. ( ...