Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
What is sandpaper?
Sandpaper is based on different abrasive substances, including 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 metal or non-metal workpiece surfaces in water or oil. Commonly known as sand skin. A material 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 metal or non-metal workpiece surfaces in water or oil. The base paper is all made of unbleached sulfate wood pulp, which is strong and tough, wear-resistant and folding-resistant, and has good water resistance. Grinding materials such as glass sand are adhered to the base paper with adhesives such as gum, and dried.
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