Cu Sn plating is a right substitute for nickel coating because it is not allergic to human body, can meet anti diffusion requirement and has a lower cost.
电镀铜锡合金是一种合适的代镍镀层，它不使人体过敏，能满足防扩散性能的要求，且成本较低。
Cu Sn plating is a right substitute for nickel coating because it is not allergic to human body, can meet anti diffusion requirement and has a lower cost.
电镀铜锡合金是一种合适的代镍镀层，它不使人体过敏，能满足防扩散性能的要求，且成本较低。
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