锡焊件、铅锡合金、锌压铸件、铍青铜、磷铜等合金在电镀前也常用预镀铜来改善结合力。
Tin welding parts and lead-tin alloy die casting, zinc, beryllium bronze, phosphorus copper alloy in electroplating copper with commonly used before also gets to improve adhesion.
青铜即(铜锡合金)：它主要的特色是除了锌镍之外，耐腐蚀性很好的。
Bronze (copper tin alloy) : its main feature is the addition of zinc nickel, corrosion resistance is very good.
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