It is mainly engaged in the business of the series of â??Diamondâ?? Brand cemented carbide known as Chinaâ??s renowned trademark, tungsten and molybdenum, tantalum and niobium and cobalt products, etc. The products are widely used in industries of metallurgy, machinery, mining, petroleum-chemistry, electronics, textiles and furniture, etc. It can act as an agent for the import and export of metal materials, mineral products, nonferrous metal products (lead, zinc, indium, bismuth, etc.), mechanical and electrical products and their components, and instruments and apparatus. It is also engaged in the import and export of various commodities and undertakes the processing of supplied materials and machining and assembly of supplied parts as per samples, and compensation trade, and counter trade, transit trade and technology transfer. Its business network spreads over more than 70 countries and regions.