I-API 5-1 / 2 ″ I-LC FLOAT YEKLASI YOKUHLAZIYA
1. Isisihlalo sevalve kunye nediski yevali kungathintela ngokufanelekileyo i-grout ukuba ibuyele emuva.
2. I-planethi yokufika engaguqukiyo iyafumaneka ngesicelo.
3. Nokuba yi-PDC okanye i-rock bit drillable.
Bhala umyalezo wakho apha kwaye usithumele kuthi