Lejoe le tšoerotsoeng ka letsoho le kentsoeng ke Ingersoll-Randco. Ka 1912. Ho latela foromo ea Matla, e arotsoe ka mekhahlelo e mene: Pneumatic, Hydraulic, koloi ea motlakase. Pneumatics ke eona e sebelisoang haholo. Lirosa tsa majoe a tšoereng matsoho li loketse ho cheka li-blastholes tse tlase kapa tse takiloeng, holes Bophahamo ba drill ke ba 19 ~ 42mm, 'me bophahamo bo phahameng ba lesoba ke 5m, ka kakaretso e ka tlase ho 2,5m. Hangata, ho jala ha majoe a hapiloeng ka letsoho ho na le matla a ho senya a 15 ~ 45j, khatello ea lijo tsa 0,5 ~ 39, le boima ba 7 ~ 30kg.
Nako: Mar-31-2021
