... 1.drilling 2.tapping 3.punching 4.wiredrawing 5.sand blasting 6.milling 7.polish8.cutting 9.straightener 10 ... black, blue, bronze and so on.5)Machining procedure:die casting ,make mould,extrusion ,CNC (milling finish),cutting,anodized6) Factory, Employee, Capacity1 ... sets of imported CNC lathe,80sets of punching,drilling,tapping machines,with more than 36,000 product apply in electronic ,building, ...