The business scope of Luyetang Technology:Thiourea, Precipited Barium Carbonate, Natural Barium Carbonate(Toxic heavy stone powder), Barium sulfide, Barium Hydroxide Octahydrate, Strontium carbonate, Sodium bicarbonate,etc.Ferric sulfate, Ferrous sulfate, Manganese sulfate, Magnesium carbonate, Zinc sulfate,Copper sulfate,...