Daye Special Steel mainly produces gear steel, bearing steel, spring steel, tool steel, high-temperature alloy steel, high-speed tool steel and other special steels. It has more than 800 varieties and specifications of 1800, and has passed the ISO900 1 standard 2000 edition and QS 9000 "1998" quality management system certification of TUV Nande Company. Large-scale four-stage mooring chain steel has passed the certification of internationally renowned classification societies such as ABS in the United States, DNV in Norway and LR in the United Kingdom. Bearing steel, gear steel, etc. 12 varieties won the National Gold Cup Award for Physical Quality of Metallurgical Products. He has successively applied for 8 national invention patents, and the key scientific and technological projects such as steel research and development for key automobile parts 10 have reached the international advanced level. The products such as energy-saving and free-cutting non-quenched and tempered steel have won the title of national key new products, and the integrated technology of steelmaking with high efficiency and electricity-saving electric arc furnace won the second prize of scientific and technological progress of the Ministry of Education in 2008. The national standards for image analysis and stereological determination of inclusions in metals have reached 65,438. The products mainly serve automobiles, petroleum, chemical industry, coal, electric power, machinery manufacturing and so on. Products sell well at home and abroad and are exported to nearly 30 countries and regions on five continents.