Changsha Sharpen Advanced Materials Co.,Ltd has a core innovation team,and under the leadership of distinguished professor He who was awarded in Yangtze Scholar by China's Education Ministry.Sharpen is a professional enterprise specializing in R&D, manufacturing high performance compound binder Diamond (DIA) and Cubic Boron Nitride (CBN) grinding abrasives:a new type diamond grinding discs applicable in zirconia, sapphire crystal wafer grinding and polishing;SAP powder metallurgy high speed steel products;Also Sharpen provides technical service support and integrated solution on grinding and polishing process.Owing to our particular single phase intermetallic metal ceramic compound binder, Our diamond /CBN grinding wheel has good sharpness, high shape maintenance, long service life and easy dressing ability, particularly suitable for processing larger carbide tools (diameter>10mm) and powder metallurgy HSS cutting tools. Also, production of various performance characteristics of super hard material grinding wheel, is suitable for processing of Ti (C,N) cermet cutting tools, PCD/PCBN inserts and other types of difficult to process material tools.In March 2015, we successfully opened up a new application in sapphire crystal wafer grinding and polishing process, with high efficiency, high degree of surface finish, and high precision diamond wheel discSAP Powder metallurgy HSS serials which adopts the lastest powder metallurgy technics,with high quality powder raw materials ,by near-net shaping pressing forming,activated sintering and composition ladder controllable reaction diffusion to achieve products€™alloying and fully densified .Only with a few machining, can obtain various shapes and sizes tooling and moulding products.SAP tooling materials mainly contain powder metallurgy HSS and steel bond hard alloy,SAP Powder metallurgy HSS contains Six series:Die steel;High chromium stainless steel;No cobalt HSS¼›Cobalt HSS(HSS-Co);High Niobium HSS (HNHSS)