Sandpaper

Sandpaper is a strong paper with a rough surface covered with sand or a similar substance, used for rubbing surfaces in order to make them smooth. According to different abrasive materials, it is divided into aluminum oxide sanding sheet, automotive waterproof sandpaper and so on. Dry sandpaper(wood sandpaper) is used to polish wood and bamboo surfaces. Water-resistant sandpaper is used to polish metal or non-metallic work piece surfaces in water or oil.