Aluminum oxide wear-resistant layers after gum dipping are coated with lacquer paintings.

在浸胶后的三氧化二铝耐磨层上涂敷漆面。

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Aluminum oxide wear-resistant layers after gum dipping are coated with lacquer paintings.

在浸胶后的三氧化二铝耐磨层上涂敷漆面。

youdao