... 4. Passed ISO9001:2008 certification.5. Have many sets of CNC machines, test equipments. 6. Product complaints below ... , high precision metal spring clip, high precision metal sheet, high precision slider and other metal accessories. Product specification ... bronze, Zinc alloy, aluminium and other material as requestedSurface treatmentkinds of plating (Zinc, Nikel, Chrome, Tin, Ag); Painting, Powder ...