Declaration elements of silicon carbide
Declaration elements of silicon carbide Silicon carbide customs code: 28492000 1. Product name: silicon carbide 2.SiC component content: 98%min 3.Usage: sandblasting, grinding and polishing 4. Appearance: powder 5. Crystal form: Trigonal crystal system 6. Mohs hardness 9.2Min 7. Domestic source of goods: Other places in Henan