Quartz sand filter material a natural quartz ore as raw materials, carefully selected from crushing and screening twice. It is a hard, wear-resistant and stable chemical properties of silicate minerals, the main mineral component is silicon dioxide (SiO2), milky white granular appearance, a density of 2.65, which is insoluble in aqueous acid, melting point of 1750 with no impurities, high mechanical strength, chemical stability, good economic benefits. Contact: Ms.Ella Cell phone:0086-18231421837 QQ:3195095761
