In the 1990s, the world's major iron

 and steel enterprises became large multinational companies through mergers and restructuring, and their market share gradually increased. Correspondingly, the concentration of stainless steel industry in the global industry is also increasing, in order to continuously meet the needs of the development of various industries, stainless steel varieties and quality of competition is increasingly fierce. The products of Shandong Tanggang Iron and Steel Co., Ltd. are mainly stainless steel, and the production capacity of the enterprise has reached more than 200,000 tons. The main production of many varieties, many specifications, small batch of stainless steel long or special stainless steel products.