... and be smashed again after they fall down to the bottom.FeaturesThis machine combines the whirl technology ... efficiency so as to eliminate the environmental pollution.MaterialsInorganic compounds: borax, calcium carbonate, hydroxide, copper sulfate oxide, barium carbonate, ... trioxide, clay and so on.Dyestuff: anthraquinone, black ferric oxide, indigo blue pigment, butyric acid, titanium hydroxide, zinc ...