Wuhan Ninestones Superabrasives Co., LtdYakavambwa muna 2012 nekudyara mari inosvika mamiriyoni maviri emadhora ekuAmerica. Ninestones yakatsaurirwa kupa mhinduro yakanakisa yePDC. Isu tinogadzira uye tinogadzira mhando dzese dzePolycrystalline Diamond Compact (PDC), Dome PDC uye Conical PDC dzekuchera mafuta/gasi. Kuchera kwezvepasi, mainjiniya emigodhi uye maindasitiri ekuvaka. Ninestones inoshanda pamwe chete nevatengi kuti vawane zvigadzirwa zvinodhura zvakanyanya kuti zvienderane nezvinodiwa zvavo. Pamusoro pekugadzira PDC yakajairwa. Ninestones inopa magadzirirwo akagadzirirwa zvichienderana nemashandisirwo chaiwo ekuchera. Nekushanda kwakanaka, mhando inogara iripo uye sevhisi yepamusoro, kunyanya mumunda wePDC yedome, Ninestones inoonekwa seimwe yevatungamiriri vetekinoroji.
Ninestones ine system yakakwana yekuedza chigadzirwa chePDC, senge VTL heavy load wear test, drop hammer impact test, rmal stability test, uye micro-structure analysis. Isu tinotevedzera kupa zvigadzirwa zvePDC zvakanaka zvine manejimendi akasimba emhando. Tapasa zvitupa: lS09001 Quality Management System, lS014001 Environmental Management System uye OHSAS18001 occupational Health and Safety Management System.