The stability of CS chromeplate liquid is the important problem of people attention.

CS镀铬液的稳定性是人们关注的重要问题。

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Electric carving gravure is first in the copper surface electric carving, chromeplate, and then after grinding.

电雕不凸版，是先在铜暗地电雕，后举行镀铬，再经研磨加工而不败。

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