Quartz sand is a kind of filter which is most widely used and has largest amount in China,it is apply in single,double quick filter and high purity water treatment as supporting layer for industrial. The quartz sand which our company produced,with natural quartz mine as raw material,produced through mining, broken, washing, sieving,etc process (High purity quartz sand by acid), appearance is white crystal with polyhedral or globular shape,has no impurities,high mechanical strength, chemical performance stable,strong Sewage Interception capacity, also can use long cycle,with good economic.