... own brucite mines, Brucite products were used widely Flame retardant, We specialize in brucite manufacture and exporting, ... magnesium metal.Due to its good fire retardancy,it is ideal not-toxic,smokeless,non-polluting flame retardant. ... used as raw material for making lightweight magnesium oxide,magnesium oxide and magnesia cement.The specifications are ... 120mesh,200mesh,325mesh and so on flame retardant