Answer: if the surface is hone finish use 400-600# sandpaper to grind until the mark disappear. And then use the detergent and cloth to make it become original.

• 七答：如果台面光洁度要求是哑光，用400-600目砂纸磨光直到刀痕消失，再用清洁剂和百洁布恢复原状。