This new hydraulic cylinder may also provide reference for other single-acting cylinders with low speed.
2
立柱采用双伸缩作用液压缸，以增加工作行程来满足支架调高范围的需要。
The column USES the double expansion and contraction function hydraulic cylinder, increases the power stroke to satisfy the support to adjust the high scope the need.
3
VRP120型液控单向阀用于锁紧单作用液压缸。
VRP120 single acting pilot check valves lock a single acting cylinder.
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