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Natural silica sand

High-quality silica sand, clean surface, particle size and other advantages, is the ideal natural foundry sand.


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High quality silica sand with SiO2The content is moderate, the surface is clean, the grain is round and other advantages, is the ideal natural foundry sand. The company has 3 mines, covering an area of 1700 acres. The annual production capacity of each type of silica sand is 700000 tons. The use of drying system, screening system, grading system to meet customer demand for silica sand particle size distribution, production control fine management, product quality and stability.





Name Chemical composition (%) performance index
Group code SiO2 AI2O3 Fe2O3 It's high MgO K2The Na2O Burning reduction (%) Acid consumption value ml Sintering point ℃
40/70 88-93 ≤ 6.0 ≤ 0.6 ≤ 0.8 ≤ 4.0 ≤ 0.35 ≤ 4.5 ≥ 1350

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