2. Hello! Diamond powder or diamond gypsum is generally used for jadeite polishing, and jadeite itself will have dust during processing. Frequent contact and inhalation are really harmful to human body, so protective measures should be taken when operating, such as wearing masks and gloves. Only on behalf of personal views, don't spray if you don't like it, thank you.
3. Cerium oxide is toxic to human body. Pure products are white powder or cubic crystals, and impure products are light yellow or even pink to reddish brown (because they contain trace amounts of lanthanum and praseodymium, etc. ). Almost insoluble in water and acid. Relative density 3. Melting point 1950℃, boiling point 3500℃. Toxic, lethal dose (oral) is about 1g/kg.
4, toxic, carcinogenic ability is quite strong, so it is generally used for outdoor decoration trap leakage, not for indoor decoration. As for the smell of roof asphalt ... it's better to smell less. It's really bad for your health. The main function of linoleum is to seal oil on machinery. Wool felt is the best way to seal oil.
5. Different materials specially used for polishing or repairing scratches, such as glass, ceramics, stone, metal, plastic and jewelry. 2. Wool wheel is an essential wheel for jade polishing, which is used in the last process of stone polishing. It can play the role of eliminating scratches and brightening, and can also be used as one of the combined polishing wheels to eliminate shallow scratches on the jade surface.
6. Mix the diamond powder into paste, find a bamboo dipped in the diamond powder paste, and gently polish it back and forth on the jade surface. In addition, you can also use hanging mill or bench mill and hose to polish a large area, and use wool wheel to polish a small part of scraggy with high-grade diamond powder paste.