The maximum allowable deviation of the vertical is the vertical degree when the construction elevator is installed
5 kinds of circumstances. 1: the height of the elevator guide frame is less than 70 meters...
What procedures and procedures will be required to re-use after the construction elevator overhaul?
After the construction elevator overhaul, the contents of the inspection and acceptance in...
What is the safety device for construction elevator?
A lot of 1, anti-drop safety device 2, upper and lower limit 3, extreme limit 4, buffer sp...
Whether the construction elevator is a dual-purpose elevator
The construction elevator is being operated on; And a person's elevator is automatically c...
How to save the elevator accident
Take escalator safety knowledge Passenger escalator before to keep checking your shoes clo...
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