• The safety arrestment elevator is simple in structure, and maintenance workers can conveniently make the cage of lift arrest to repair the lift.

    本发明结构简单维修人员方便对电 梯轿厢制停,对电梯进行维修。

    youdao

  • The safety arrestment elevator is simple in structure, and maintenance workers can conveniently make the cage of lift arrest to repair the lift.

    本发明结构简单维修人员方便对电 梯轿厢制停,对电梯进行维修。

    youdao

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