fesimg 1.as as additives, alloy additives, mainly used in the production of steel and iron. 2.self- produced and self- export labotory in the factory FeSiMg is a good inoculant, which joined in ferrosilicon, calcium, magnesium and alloys of rare, it have high mechanical strength, strong desulfurization. It as additives, alloy additives, mainly used in the production of steel and iron. ...