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Premium Quality Powder 45-150mesh Fused Silica Sand for Refractory Industry. Wide Mesh Range: Available in 45-150mesh powder and various granular sizes for diverse needs. Versatile Applications: Suitable for refractory, semiconductor, optical, and chemical industries. Customizable Options: Supports customization for purity, particle size, shape, and packaging. Certified Quality: ISO9001, SGS, and BV certified ensuring consistent product quality. Stable Chemical Props: Acid and alkali corrosion resistant with low dissolution rates. Professional Manufacturer: 18 years experience with complete quality management and R&D capabilities.