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Key: double-bitted iron key, nickel plate. KA or KD.
钥匙：双面钥匙，镀镍。通开/非通开。
youdao
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The surface of the keys can be in gold plate, silver plate and nickel plate.
按键可以处理为镀金，镀银和镀镍等。
youdao
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The surface of the keys can be in gold plate, silver plate and nickel plate.
按键可以处理为镀金，镀银和镀镍等。
youdao