Originally founed by some engineers graduated from Tsinghua University ,CHN-TOP SCI&TECH CO;LTD is specializing in ultra hard cutting tools(PCD,PCBN,MD,ND,CVD diamonds) ;high precision equipments(ultra hard tools grinders,vacuum brazing machines,laser cutting machines,polish machines ; CNC process cutting ,brazing,polish service for PCD,PCBN,Cystal and other ultra hard material;distribute some imported compact blanks:(GE,E6,ILJIN,SUMITOMO,EU-DIA).As the professional maker,not only we can offer technical service,but also the ONE STOP SHOP for ultra hard material field with good reputation from global market.