1. material: cold rolled steel 2. finish: zinc plated, 12 mircon, 144 hours SST NUT RETAINER PLATE ASSYMATERIAL: COLD ROLLED STEEL, DC01SURFACE: YELLOW ... 400MT4. Design mould for custom5. With different finish treatment:anodizing, power-coating, Zinc-Plated, Chrome coated ,Nickel Plated etc.6. tooling way: stamping ... parts (metal stamping products,pressed parts,stamping parts) Nut Retainer plate