... Gearbox Co.,Ltd. Etc.With 3200 and 1600 Tons of hydraulic machine, 5 Tons of electro-hydraulic hammer, 2*6m and numerical control ... requirements, such as forging shaft, forging rings, forging flange, gear shaft, gear rings, cast forgings, etc., especially there are special requirements to ... strict quality assurance system will conduct throughout the entire production . Gear shafts - speed reducer