Tianjin metallurgy rolling a iron &steel group, under the tianjin bohai iron and steel group, and tianjin metallurgy group, is a collection of sintering, iron, steel, metal rolling, deep processing and trade, logistics, real estate with a state-owned steel joint enterprise. With an annual output of 3.5 million tons of iron, 3.5 million tons, 5 million tons of material production capacity. With eight home in manufacturing enterprise, trade type enterprise seven home, logistics enterprises . The