... output,the low,low carbon ferromanganese of more than 40,000 tons ,80,000 tons of silicon-manganese alloy,vanadium iron,vanadium nitrogen ... alloy,calcium-silicon alloys,other special alloys more than 3,000 tons:two sets of 2 tons medium frequency electric ... furnace,ferromanganese an annual output of 8,000 tons of aluminun.With many domestic steel enterprises to establish ...