... EDM, broaching, etching, honing, micro machining, gearmanufacturing, screw machining, thread grinding, and thread rolling2) Materials handled: carbon steel, alloy steel, stainless ... , blackodizing, surface hardening through and inductionhardening, annealing, tempering, nitriding, carburizing, assembly, and welding. 5) Equipment: CNC lathe, CNC milling machine, CNC high-speed engraving machine, common ...