1.Material: steel, stainless steel, aluminum . 2.Surface treatement: Zinc, powder painting,galvanized... Welcome customized drawings or blueprints; OEM orders acceptable; ... machines, totally 20 sets.We can provide in-house design, tooling,manufacturing machining and coating of stamping parts.Company Advantage:1.ISO ... )Surface treatment: zinc/nickel/chrome plating,hot galvanized,painting,pvc coating