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Second Grade SIC Classification
Silicon carbide is made of quartz sand, petroleum coke (or coal coke), wood chips and other raw materials through high-temperature resistance furnace smelting. Silicon carbide is also called moissanite. Among contemporary non-oxide high-tech refractory raw materials such as C, N, and B, silicon carbide is the most widely used and economical type, which can be called gold steel sand or refractory sand
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