... itself, flexible, crawling ability.4,In determining the arms, hydraulic rock face any position, accurate positioning, Construction of good ... , drilling speed.7,Power, low energy consumption.8,Hydraulic system is advanced, pipeline layout is reasonable and easy ... 105 ° Yang 15 °angularWithin 45 °, 45 ° outsideWith drill machine model HYD200Electric powerkw45Power supply voltagev380/660The weightKN80