Zinc-Alloy Metal：Zinc-Alloy is the process by Injection mold.The Quality is harder so fine polish can be handled to achieve better surface finish.In the mean time,the Cut-out part on the product can be rather tiny and sports better 3-D effects in comparison with Stamping process.Antique plating is ideal plating process for Zinc Alloy.In-fill coloring is also available.Pantone color chart can be guided to match.Pewer is softer process by Spin Cast,The metallic surface finish is worse than Zinc Alloy due to its softness.