According to different abrasive materials, there are emery paper, artificial emery paper, glass emery paper and so on. Dry sandpaper (wood sandpaper) is used to polish wood and bamboo surfaces. Water-resistant sandpaper (water sandpaper) is used to polish the surface of metal or non-metal workpieces in water or oil.

Commonly known as sand skin. A material used for grinding. It is used to grind the surface of metal, wood, etc. to make it smooth and smooth. It is usually made of various abrasive grains glued on the base paper. According to different abrasive materials, there are emery paper, artificial emery paper, glass sandpaper and so on. Dry sandpaper (wood sandpaper) is used to polish wood and bamboo surfaces. Water-resistant sandpaper (water sandpaper) is used to polish the surface of metal or non-metal workpieces in water or oil. The base paper is all made of unbleached kraft wood pulp. The paper is tough, wear-resistant and fold-resistant, and has good water resistance. The glass sand and other abrasive materials are glued to the base paper with adhesives such as gum and dried.