The pre-tax cost composition of iron and steel enterprises is roughly as follows: 50% of iron-containing raw materials such as ore and scrap steel; Coal, natural gas and other fuels are15%; The manufacturing cost is10%; Depreciation, finance expenses and amortization13%; 4% of metallurgical auxiliary materials such as limestone, fluorite and dolomite refractory bricks; Labor costs and other 8%. Just ask questions and don't confirm that Buddha is unforgivable!