otsealex Limper

  • Member since Nov 7th 2019
Last Activity
  • otsealex -

    Posted the thread How To Maintain The Elevator Lift.

    Thread
    basic requirements ① The safety protection device of the elevator must be flexible and reliable. When the safety protection device fails, the Elevator Lift cannot be put into normal operation. ② Elevator All parts of elevator, machine room,…