... ,Length:8000mm Supply condition: Rough or final machined, normalzied Roller is our main product. Our producing capacity is about 3000tons per month. We ... gears, gear splined shaft, shaft,gear shaft,and stepped shaft which are made of nickel molybdenum steel, alloy steel, die steel ... , stainless steel and carbon steel. The maximum forging shaft size is 12 m or close to12.8 tons. The maximum gear size ...