... OEM Ability:1) Machines:Die casting machine for alloy products, Stamping Machine for brass products2) Surface Coating:Polishing,Electroplate,Enamel ... Test: We have manual and semi-auto fasterning machines for testing button5) Materials: H65 Brass & #3 Zinc Alloy, Eco-friendly ... metal detection and European Union environmental protection.If your company needs proofing, quoting and so on, please contact ...