Crystalline Silica Powder is producing from white natural silica stone,it is refined through manmade selecting,ex-ion water dispose,grinding,filtrating drying and sieving etc.

• 结晶型硅微粉是以天然白石英为原料，经人工检选、高纯水处理、细磨、过滤、干燥、筛分等多道工序精制而成、其质纯、白色。