Moderate scratches may require an electric dual action polisher, and deeper swirl marks caused by the improper use of rotary buffers and rubbing compounds may well require professional color sanding and buffing.

• 中度划痕可能需要抛光机，深度划痕要使用旋转式抛光机，有擦伤的地方需要专业用的有颜色的砂纸和抛光机。