Quartz sand series - 99.5-99.9% Fe2O2 ≤ 0.005% high purity quartz sand SiO2 ≥ is 1-3 grade natural crystal stone and high quality natural stone class, carefully selected, fine processing. The size range of 1-0.5mm, 0.5-0.1mm, 0.1-0.01mm, 0.01-0.005mm, according to user requirements. Main purposes: Senior glass, electronic filler, smelting stone, precision casting, chemical, ceramics, etc. Lingshou Yijia Mining Co., Ltd. specializing in the production of quartz sand. Welcome calls to plant advisory missions. Contact :0311 -6,750,587,518,633,901,079 URL: http://www.yijiaky.com