... pelletPacking:25kg pp/pe bag ,50kg bag,1000kg bagIt is an important raw material in the production of magnesium carbonate, magnesium sulphate ... It is an important raw material in the production of magnesium carbonate, magnesium sulphate, magnesium oxide and other ... production of light building materials ,such as fiber glass tile, omamental plate, sanitary, ware ceiling ,floor brick ,magnesium cement ...