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High Purity Low Expansion Refractory Fused Silica Sand for Kiln Lining & Furnace with ISO 9001 Certified (99.9% Purity 0.1-1mm), Find Details and Price about Fused Silica Sand Refractory Grade Fused Silica Sand from High Purity Low Expansion Refractory Fused Silica Sand for Kiln Lining & Furnace with ISO 9001 Certified (99.9% Purity 0.1-1mm) - Lianyungang Runlai Quartz Technology Co., Ltd.