... 42CrMo 2.standards:JIS,DIN,ASTM,BS 3.process: Ring Gear 4.Weight:35kg Features:1) Materials: carbon steel, ... loose hammers and water hydraulic pressesand , automatic control ring forging machine, heat treatment cellar, digital control fibre natural ... machine, bench drill machine ,CNC machining centre etc6) Testing equipment:Supersonic inspection machine, Supersonic flaw detecting machine , physics ...