Product DescriptionMaterialStainless steel, copper, brass, carbon steel, aluminum etcSurface TreatmentZn-plating, Ni-plating, Cr-plating, Tin-plating, copper-plating, the wreath oxygen resin spraying,the heat disposing, hot-dip galvanizing, black oxide coating, painting, powdering, color zinc-plated,blue black zinc-plated, rust preventive oil, titanium alloy galvanized, silver plating, plastic, ...