High purity raw quartz. test report is below:SiO299.9 MA%Fe2O32.0 ppmCr2O30.5 ppmCoO 0.1 ppmNiO 0.5 ppmCuo 0.5 ppmMnO 2.0 ppmAl2O31500 ppmTiO2 200 ppmK2O 100 ppmNa2O100 ppmCaO 100 ppmproducts size:50mm~200mm
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