^{2002, Zhengzhou Berlt was founded.}

^{2003,First solid PCBN inserts manufacturer in China}

         ^{Solid PCBN inserts successfully replaced ceramic inserts and were used for production of slurry pump.}

        ^{Replacing carbide inserts , solid PCBN inserts were used to finish automobile brake disc with high-speed.}

^{2004,Solid PCBN inserts successfully replaced carbide inserts in machining of chill rolller}

      ^{Solid PCBN inserts were successfully used for interrupted turning big gear(HRC62)}

^{2005,Solid PCBN inserts were used to finish quenched ring}

      ^{PCBN braze inserts were used for finishing quenched , and the inserts were promoted widely}

^{2006,Finish the raceway of slewing bearing}

^{2008,Solid PCBN inserts were used for high-speed roughing of break discs end faces, excircles, and inner holes}

^{2009, Solid PCBN inserts were used for the high-speed milling of the cylinder head of cast iron engines. Berlt is the first PCBN overall composite inserts producer in CHina}

       ^{Turning replacing grinding. PCBN overall composite inserts were successfully used for the finishing of carburization and quenched automotive gears and hard grooving of gear shaft.}

^{2010,Replacing coated inserts, solid PCBN inserts were used in high-speed surface milling of automobile gearboxes.}

^{Solid PCBN inserts were used for the finishing of quenched ball-screws}