surface treatment parts: 1.stainless steel,aluminum, 2.tolerance:+/-0.002mm 3. ... Most of the precision sheet metal stamping parts with surface treatment are used in motorcycle,instruments,meters etc. Not agency, not ... above. Process technologyCasting, Machining, Metalworking, Sheet Metal Bending, Surface Treatment, Heat Treatment, Griding, Milling, wire EDM, Linear Cutting etc.We can provide ...