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SiO2 ≥99-99.5% Fe2O3 ≤0.02-0.015%, selected from high-quality ore for complex processing The particle size range is 1-380 mesh, which can be produced according to user requirements, and the appearance is white or crystalline. Main applications: filter media, high-grade glass, glass products, refractory materials, smelting stones, precision casting, sandblasting, wheel grinding materials, etc.