... production of steel, Iron as additives, alloying agent. Rare earth magnesium ferrosilicon is a good ball agent, their mechanical strength ... desulfurization effect stronger. Production nodulizer, vermicularizing inoculant use light rare earth-Mg-Si alloy, also used in the production of steel ... . Ferrosilicon, plywood, metal magnesium is the production of rare earth-Mg-Si alloy of the main raw material