工作安全：电动千斤顶具有升降自锁的保护装置，当超出顶举范围时将自动停止升降，安全可靠。
Job security: electric jack has lift the self-locking protection device that, when beyond top heave range will automatically stop lifting, safe and reliable.
高科技毛细管过热保护装置，安全可靠。
Capillary high-tech thermal protection device, safe and reliable.
采用安全可靠的航天接头，充分保护电路的稳定性。整并的电路系统，不但安装简易而且维护方便。
Adopts safety and reliable spaceflight joint, sufficient protects the stability of the circuit. The whole circuit system, not only easy to install but also maintenance is convenient.
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