... .material : 42CrMo 2.standards:JIS,DIN,ASTM,BS 3.process: Ring Gear 4.Weight:35kg Features:1) Materials: carbon steel, stainless ... ton friction product line, 1250 ton press product line), various loose hammers and water hydraulic pressesand , automatic control ring forging machine, heat treatment ... INDUSTRY CO., LTDADD: Youjia Industry Zone, Ganjingzi District, Dalian , China Ring Gear