Kode ya IADC ni ngufi kuri "Ishyirahamwe Mpuzamahanga ryabashoramari".Kode ya IADC ya Bits ya Tricone isobanura igishushanyo cyayo hamwe nibindi bishushanyo mbonera (UMURONGO W'IShati, LEG, IGICE, CUTTER).Kode ya IADC yorohereza abamotari gusobanura ubwoko bwurutare t ...
Soma byinshi