Casting mould silica sand scrubbing machine LZZG
Nov 18, 2019 Silica Sand For Casting Mould. Scrubbing sand is a kind of raw sand for casting. The natural silica sand is scrubbed, washed, classified, and dried, and the mud content is less than 0.5. In natural quartz sand ore, due to weathering deposition, a large amount of clay and iron are mixed therein and contaminate the surface of the quartz sand.