Founders of Beijing HongDa Hard Materials Technology Research Institute are four engineers with 30 years research experience, specializing in research and development of hard, wear-resistance and anti-corrosive materials, which including sintered carbides (tungsten carbide ) and high density ceramic materials ( boron carbide, silicon carbide ).Main products: Tungsten Carbide Nozzle, Boron Carbide Nozzle, Silicon Carbide Nozzle, the accessories of sandblast machines, high pressure water spray nozzles and so on.Non- standard products: cold-punching moulds, extrusion die, seal rings and so on.The sale of sand blast nozzles hits about 60000 PCS.High pressure water spray nozzles (tungsten carbide inserts) with excellent spray effect and long life time. The sale of high pressure water spray nozzles reaches 1500-2000 sets per year. Users widely spread all over the country.On the other hand, the institute also pays more attention on the study and development of new materials, new methods, and new products. The turnover increases 10% annually. Welcome old and new customer to cooperate with us.