... , aluminum (according to customer's requirement.Surface TreatmentZn-plating, Ni-plating, Cr-plating, Tin-plating, copper-plating, the wreath oxygen resin spraying, the heat disposing ... , blue black zinc-plated, rust preventive oil, titanium alloy galvanized, silver plating, plastic, electroplating, anodizing etc.ApplicationsAutomotive, instrument, electrical equipment, household appliances ...