Constant as the company was founded in 1993, is set research and development, production, sales of hard alloy, service integration in the national high-tech enterprises, for the iron and steel, metallurgy, machinery, coal, petroleum, geology, architecture, chemical industry, electronics, textile and defense industry and other industries to provide high-quality products and services.

The main products include high-speed wire rod rolling, cutting tools, mining and oil drilling mining tool column teeth, non-magnetic alloy products, artificial diamond anvil cylinder, pressure, cold upsetting die, drawing die and powder metallurgy mold, non-standard products, and formed a tungsten carbide powder, tungsten carbide mixture, carbide and its deep processing products of the four major production system.

The company has adopted the ISO9001, ISO14001 and OHSAS18001 certification. The past 10 years, constant all the way to the well-known enterprises at home and abroad to provide quality products and services; today as in the past, constant still pursuit of enhancing production capacity of the company, to provide higher quality products and innovative services. Through the introduction of foreign advanced production technology, automated production equipment and advanced management system, pay attention to environmental protection and the occupation safety and health, the scientific system to carry out R & D activities as well as with other advanced production cooperation, constant has grown into the most innovative research and development institutions and technology leader in the cemented carbide manufacturers. We work with clients to establish partnership relations of cooperation, in the entire supply chain to offer them support. From production to final sales services, customized production, sales, training and after-sales service, engineering and technical team of technical support, design and marketing team creativity support, in-depth on-site personal service and rapid r