Low Type Heavy-duty Industrial Caster Low Type Heavy-Duty Industrial Caster,Industrial Caster,Nylon Wheel,Universal Casters BENYU CASTERS & WHEELS CO.,LTD , https://www.benyucaster.com In the original military production of our factory, there are two key parts and rear nozzles, which need to be shaped. The equipment used is CE7132 large copying lathe. The workpiece material is 30CrMnSiA, forged blank, and the unilateral margin is 7~8mm. We are willing to use a welding tool to cut the knife frequently during cutting. The tool has low durability and requires three passes. 30CrMnSiA alloy steel is a difficult-to-machine material with high toughness, difficult to break chips, and chips into strips.