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  • While elevator safety has come a long way Business & Finance
  • The interlock switch assists in the movement of the China Elevator only when the doors have come to a complete close, while door restraint system restricts the opening of the doors unless it is at a floor level. Emergency alarms, telephones, lighting and ...  more
    • 190 total views
    • 1 total member
    • Last updated November 16, 2017

While elevator safety has come a long way

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