... steel 4.+/_0.05mm Most of thehigh precision sheet metal partsare used in motorcycle,instruments,meters etc. 1 ... Advanced equipment(CNC lathe, turning lathe, wire EDM, griding machine etc) (5)Various materials(stainless steel, aluminum, iron, ... materials are not listed above.Process technologyCasting, Machining, Metalworking, Sheet Metal Bending, Surface Treatment, Heat Treatment, Griding, Milling, wire ...