As a process production technology, rotary copper door will inevitably leave stains on the copper door during the drilling process, because the stains will not affect the normal use of copper, and the beauty of copper is relatively less. When the high temperature coating surface in the drilling process, due to the existence of epoxy glass substrate, the instability of this material may affect the production process of structural integrity of the door, Especially for the door of copper composite structure, it may affect the effect of hole wall, leading to bond seems to fall off, crack and other abnormal phenomena.

　　要移除涂抹的铜门，你需要一些基本的化学溶液，比如高锰酸钾。高锰酸钾可涂敷在树脂表面，腐蚀成蜂窝状的大小缝隙，它可附着在树脂与化学铜的表面，具有更强的结合力，可有效地涂敷，这种方法是减少成本和风险合适的方法。

　　To remove the coated copper door, you need some basic chemical solution, such as potassium permanganate. Potassium permanganate can be coated on the surface of resin and eroded into honeycomb like gaps. It can be attached to the surface of resin and chemical copper. It has stronger binding force and can be effectively coated. This method is an appropriate method to reduce cost and risk.

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