Sanadihii la soo dhaafay, tignoolajiyada qodista ayaa si aad ah u horumartay, mid ka mid ah hal-abuurka muhiimka ah ee keenaya isbeddelkan waa gooyaha PDC.PDC, ama polycrystalline diamond compact, gooyaa waa nooc ka mid ah qalab wax qodista oo isticmaala isku darka dheeman iyo carbide tungsten si loo hagaajiyo waxqabadka iyo du ...
Akhri wax dheeraad ah