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TISCO(Taiyuan Iron and Steel (Group) Co. Ltd) is a giant iron and steel complex which integrates mining, iron and steel production, processing, delivery and trade; is also the largest stainless steel producer in the world with the most advanced technologies and equipment and full range of products and specifications. Its annual production capacity is more than 10 million tons of steel, among it, 4 million ton of stainless steel. Its annual sales revenue is more than 100 billion yuan in the last seven years. TISCO produces a series of high efficiency, energy saving and long service life product clusters, such as stainless steel, cold rolled silicon steel, high strength and toughness steels. Its key products have been widely applied in the key and new industries of petroleum, chemical, shipbuilding, container, railway, automobile, city light rail.