What is the refractory din70?

Up to now, the listed concept stocks with relatively large refractories are mainly as follows: 1002066 ruitai science and technology refractories 2002624 leijin refractories 3002225 general refractories 4002392 Beijing Lier refractories 560 1992 Jinyu refractories 6002 167 Oriental zirconium refractories 7002088 Luyang refractories 800258. Haiyuan mechanical fire resistance here introduce these concept stocks respectively: 1. Ruitai Science and Technology Co., Ltd. is the birthplace of new products and processes for melting and casting refractories in China, and ranks second in the industry in terms of production capacity and market share. The main products are divided into two series: fused cast zirconia corundum and fused cast alumina, with an annual production capacity of 7000 tons and 600 tons respectively. 2. leijin Co., Ltd. leijin Co., Ltd. is one of the leading magnesia-calcium refractories enterprises, and its market share in 2008-20 10 was 10.39%, 12.64% and 14.82%, respectively, increasing year by year. The company is close to the upstream resource storage area, which helps to reduce production costs and further industry integration. Technically, the company not only has the leading domestic "ultra-high purity magnesia-calcium brick technology", "unburned magnesia-calcium brick technology" and "high calcium magnesia-calcium brick technology", but also has key technologies such as magnesia-calcium synthetic sand production technology and magnesia-calcium brick waterproof technology. Compared with magnesia-calcia brick, the graphite consumption of the newly developed magnesia-calcia brick is reduced by 50%, and the cost advantage is obvious. 3. Punai Co., Ltd. has become the main producer of functional refractories and unshaped refractories in China, with the largest market share of refined permeable bricks outside steelmaking furnace in China and the largest supplier of refractory products in China iron and steel industry. The company's annual output is 6.5438+0.2 million tons of breathable bricks, 6.5438+0 million tons of bulk materials, 25,000 tons of prefabricated parts (seat bricks, slag baffles, electric furnace tops, etc.), 3,000 tons of heat storage balls, 500 cubic meters of heat storage bodies and other products; Punai Functional Company has a production line with an annual output of 3,000 tons of continuous casting, 1 1,000 tons of sliding plate nozzle and 2,400 tons of silicon nitride combined with silicon carbide. Yingkou Punai Company has a production line with an annual output of 50,000 tons of magnesia-carbon bricks and 654.38+10,000 tons of magnesia bulk materials. The product range is complete, and the production capacity ranks in the forefront of the industry. More than 20 series and 200 varieties of refractories produced by the company are widely used in steel, non-ferrous metals, electric power and other fields. 4. Beijing Lier Company is one of the largest comprehensive contractors of refractories in the steel industry, integrating material design, research and development, configuration, manufacturing, supporting, installation, construction and maintenance. It is also one of the largest manufacturers and suppliers of refractories in China. By the end of 2009, the company had a production capacity of nearly 14 10000 tons of refractory products. The unshaped refractories produced by the company, such as tundish lump-sum materials, castable for permanent lining and cover, series refractories for annular heating furnace and refractories for direct reduction iron, have the first market share in China, and the second market share of permeable bricks in China. 5. Jinyu Company is the largest supplier of unshaped refractories in China and one of the largest suppliers of unshaped refractories in China. It mainly manages the refractory business through its subsidiary Beijing Tongda Refractory Technology Co., Ltd. In June 2009, Beijing Tongda was awarded the national enterprise technology center. China is rich in refractory raw materials, and bauxite, magnesite and graphite, which are the basic raw materials of refractory materials, are abundant. The proven basic reserves of bauxite exceed 2 billion tons, making it one of the three largest bauxite exporters in the world. The proven basic reserves of magnesite are 3.4 billion tons, ranking first in the world. With proven basic reserves of 800 million tons, graphite is a big exporter of graphite. 6. Dongfang Zirconium Industry Co., Ltd. is engaged in research and development, production and sales of zirconium series products. The main products are "Yutian" brand zirconium oxychloride, zirconium dioxide, composite zirconia, zirconia structural ceramics, zirconium silicate and more than 80 varieties and specifications. It is one of the most complete professional manufacturers of zirconium products in the world. Zirconium series products are mainly used in nuclear power sources, special ceramics, optical communication devices, solid fuel cells, weapons and aerospace fields. 7. Inner Mongolia Luyang Energy Saving Materials Co., Ltd., a wholly-owned subsidiary of Luyang Co., Ltd., plans to invest 4.39 billion yuan to build a circular economy industrial park and build projects related to coal gangue deep processing industry chain, which is planned to be completed in stages in four years. Make full use of the abundant raw materials, energy and other resources in Inner Mongolia, speed up the comprehensive utilization of coal gangue, speed up the development and popularization of building insulation, refractory raw material application and other fields, seek new profit growth points, improve profitability and broaden development space. 8. Haiyuan mechanical friction press is mainly used in China's refractory industry, with backward technology, serious pollution and low safety performance in the production process. It is urgent to upgrade the advanced, efficient and environmentally friendly equipment represented by HC press of the company. The company is the only enterprise in China that has entered the refractory full-automatic hydraulic brick press industry. Prior to this, only two leading international enterprises, German Rice Company and Italian Sacmi Group, had a small amount of sales in China, and the market promotion was slow due to the cost performance.