Hydraulic performance of advanced machine, high efficiency, low noise operation.
水力性能先进，整机效率高，运转噪音低。
2
Hydraulic walking, with the completion of the various operating actions scaffold, improve efficiency, each machine can save much labor force.
采用液压行走，各个操作动作脚手配合完成，提高工作效率，每台机器可以替代大量的人力工作强度。
3
To improve the precision and the efficiency in straightening drill pipes, we make a research in the control system of the automatic hydraulic straightening machine.