The working principle is similar to that of the ordinary hydraulic cylinder, with a manual jack, Jack is also the simplest oil cylinder.
2
专业生产、液压油缸、螺旋摆动油缸、凿岩台车等液压设备。
Specialized hydraulic equipments and so on production, hydraulic ram, screw swinging cylinder, drill jumbo.
3
介绍了液压油缸在注塑模具中常见的抽芯及顶出结构，并对选取油缸的计算方法和使用要点进行阐述。
The familiar structures of loose core and ejector of hydrocylinder in injection mold were introduced. The calculating method of selecting hydrocylinder and the key points in using it were discussed.
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