... -stress 2800kfg 2.Hardness 6 3.Adsorption rate 100% Lightweight High-quality Ceramic Particles Ceramic filter with high-quality clay, clay, solvent ... surface area, strong adhesion to biological bacteria, breed quickly, biofilm, high efficiency, low temperature and turbidity removal of ammonia results achieved under ... ~10/10~25/25~400.3~0.5/0.5~0.9/0.9~1.2Bulk density(g/m3)0.65~0.851.87Density(g/m3)2 ...