At present, the Heavy calcium carbonate is mainly used in the primary products with the general granularity about 400 items and the low added value.
At present, the Heavy calcium carbonate is mainly used in the primary products with the general granularity about 400 items and the low added value.
目前我国重质碳酸钙的应用还主要是初级产品，一般粒度在400目左右，附加值低。