... . good quality, with ISO certification. submerged electric arc furnace of ferroalloy and other kinds alloys with the most advanced Chinese technology ... MnSi, FeSi, MnFe, CrFe, NiFe.Wuxi Haohua Metallurgy Machinery Co., Ltd owns several production basis with many sets of different kinds ... clients from at home and abroad. submerged arc furnace for ferroalloy with good quality and price