The elevator shaft is one of the key parts of elevator operation. If there is no elevator shaft, the elevator will have no place to run. Traditional elevator shafts such as lift compensation chain are made of concrete, and the building developers will pre-design the shafts according to the dimensions of the shafts of the mainstream elevator manufacturers in the market, and build the elevator shafts at the same time as the building is constructed. For some old buildings without elevator shafts, the current conventional practice is to use steel structures to build elevator shafts outside the buildings, so that people in these old buildings can also enjoy the convenience of elevators.
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