Sponge sandpaper is a special type of sandpaper that has grinding sand planted on a sponge. Compared with ordinary sandpaper, the main difference between them is that they have different abrasive carr...
Silicon carbide abrasive is made by high temperature smelting of raw materials such as quartz sand, petroleum coke (or coal coke), wood chips (salt is needed to produce green silicon carbide) and othe...