... 95% Application: Agriculture,Electron, Food,Industrial,Medicine,Reagent Calcined Calcium CarbonateCaCO3 powder, Activity Calcium Carbonate, Active CaCO3 Powder.whiteness: ... raw materials.Plastic products which contains the Heavy Calcium Carbonate are as the following;Pipe, Gutter, Tile ... and Atlas.5.BUILDING MATERIALLimestone and the Heavy Calcium Carbonate have been used for building since ancient ...