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1.Silica sand (SiO2 99.5%) ***** eletronical ***** constrction materials ***** epoxy floor paint 1.Quartz sand is a hard, wear-resisting and chemical stability of Silicate minerals; ***** main mineral element is SiO2; ***** color is white or colorless transparent; ***** is not soluble in acids, but slightly soluble in KOH solutions, melting point of 1750 degree c.What is the MOQ?May i know the delivery time of this product?Kindly send me the complete product catalog with Price list.