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.

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。

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At present, aluminum, copper, zinc die casting parts and products have reached the international advanced level, and a number of indicators to fill the gap.

目前铝、铜、锌压铸件等产品技术指标已达到国际先进水平，且多项指标填补了国内空白。

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Standard of equivalence of armor plate of the aluminous material of metallic stuff die-casting of water heater, cathode copper, cold rolling, galvanization armor plate has litres bigger.

热水器的金属材料压铸铝材、电解铜、冷轧钢板、镀锌钢板等价格都有较大升幅。

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