Uduce twinshi two gucukura twa Tricone IADC635 9 7/8 na IADC735 9 7/8 dufite igiciro cyagabanijwe mu bubiko.

Ubu dufite ububiko bwinshi bw'uduce dushya tw'ubucukuzi bw'amabuye y'agaciro twiza cyane, harimo ubwoko bwa IADC635 9 7/8 na IADC735 9 7/8. Niba ubyifuza, twandikire vuba kuri +86-18563617956.