金属零部件电镀与涂饰前处理是保证被涂层质量的重要工序。

The pretreatments of plating and decoration on metal parts are important for insuring the plating quality.

youdao

金属零部件电镀与涂饰前处理是保证被涂层质量的重要工序。

The pretreatments of plating and decoration on metal parts are important for insuring the plating quality.

youdao