2026-03-28

Gufungura neza: Inyungu zo gukoresha 4 3/4 Inch Tricone Bit IADC 117

Gufungura neza: Inyungu zo gukoresha 4 3/4 Inch Tricone Bit IADC 117 Imbonerahamwe y'ibirimo 1. Intangiriro kuri Tricone Bits 2. ni 4 3/4 Inch Tricone Bit IADC 117? 3. Inyungu zingenzi zo gukoresha 4 3/4 Inch Tricone Bit 3.1 Yazamutse gucukura ingufu 3.2 Igishushanyo cya 3.3 Igiciro- Ingaruka 4. Igishushanyo mbonera cya IADC 117 5. Porogaramu muri Vari