The advanced hydraulic system has self-return and drill rodstuck proof implements, which ensure great maneuverability and reliability.
先进的液压系统有自我的回报和钻杆坚持证明实施,确保伟大的机动性和可靠性。
2
Analyzed causation of TK-3 hydraulic vertical shaft coring drilling rig easy to bring hydraulic chuck failure, get stuck with actuating rod etc, put forward two alteration schemes.