... density, neutral materials For supporting foundry and casting industry, we supply Ceramsite Foundry Sand (also called ceramic foundry sand) in large quantity. Regarding ... to this product, please find details as below, DescriptionCeramic Foundry sand is made from fine bauxite, by re-fused and ... ; 170 meshPacking: 25kg/bag or others AFS:20-150 Ceramic Foundry Sand For Casting