... offered, Design Service Offered Crystal Resonator Shell1.matrial:copper,iron,aluminium,Kover2.specification: 55*22 36*22 ... N Material:Brass,CRS,Stainless steel,Kovar,Copper-Nickel-Zinc Alloy,Iron nickel alloyProduction process:Stamping,Forming,Cutting,Punching, ... ,electroplate,electroless plating,electrolytic,passivation,etc.Plating Type:Nickel Plating,Tin Plating,Zinc Plating,Gold plating,Coating ...