... weight:1 m2 : 710kg BENTONITE CAT LITTERHeishan is abundant in natural bentonite,in which the reserve of bentonite is the first rank in ... ,the more choices for pet litter,some is made of bentonite,some is made of saw dust,some is made of ... is completely pressed,dried,and then pelleted.and the bentonite has very good cohesiveness, expansibility, adsorption,while the cost is ...