... Directional Through-passing, Cat Litter, Casting Soil Bentonite for Drilling MudWith the good capacity of colloid, bentonite for drilling mud ... 16475μm residue on sieve%≤4Bentonite for Cat litterNature sodium bentonite as raw material, after the high- ... the family pet, such as cat and dog.The technical index of cat litter NumberContentQuality index1appearanceGraphite & light red granular2Water ...