... quality aspect 3)Professional service 4)One stop solution Adjustment knobs for metal procssing machine(cnc turning part) ... stock, Plate, castings, forgings,extrusions, and metal stampings.ProcessWire cutting, NC milling and turning,drilling,grinding, heat ... Treatmentblack oxide, plating, painting, anodisation, nitriding, Mirror Polishing, vibratory grinding and etc Quality ControlCMM, Profile projector, ...