... -making agent 3,adhesive solvent through ball grinding Ceramic filter grain and sand1,high-quality pot clay2,additive pore-making agent ... 3,adhesive solvent through ball grinding Ceramic filter grain and sandCeramic filter grain and sand is produced from high-quality pot ... Φ0.5-2. Φ4-6, Φ16, Φ25, Φ32 Ceramic Filter Grain and Sand