选用美国恩派克电动泵、双/单作用油压缸、中空油缸
We use the nke electric pump, double/single action hydraulic cylinder and hollow oil cylinder.

油压系统稳定性好且耐用、管口壁厚均匀、制造成本低、效率高、简单易操作
The oil pressure system is stable and durable, the pipe wall thickness is uniform, the manufacturing cost is low, the efficiency is high, simple and easy to operate.

三通拉拔、扩口过程中无水、无油、无屑、无粉尘、无安全隐患
No water, no oil, no debris, no dust, no safety hazards.