... Machining Materials:Stainless steel, alloy steel, brass, bronze, copper, aluminum, plastic, or customer specified. 3. Finishes: Anodizing, Electroplating, Sand Blasting, Polishing ... lathe etc) Various materials(stainless steel, aluminum, brass, steel alloy, plastic etc) Finish: Zinc plated, Chromated plated, Powder coating, Anti-corrosion ... to contact us. Thank you!show sample: cnc machining brass nut