... , black, silver, champagne, red rose, golden, etc. Finish machining:Cutting, milling, drilling, CNC, Anodizing, ect Tolerance:+-0.05 ... and Rohs Authentication. We have engaged in loudspeaker part producing for 12 years and we have established business ... production lines, precision Biaxial punch, CNC Machining Center, CNC lathe, precision die-casting machines and other production equipment and three ...