An elevator can be used for 15 years under the premise of normal maintenance. After the deadline, it will be overhauled, and this money needs a maintenance fund. For example, if it needs 80,000 yuan, then the property will be part of it and the fund will be part of it. The proportion may not be certain, and the minimum property will be 30%. /kloc-The need for overhaul within 0/5 years is generally caused by inadequate property management. For example, the low maintenance premium leads to the elevator company's inadequate maintenance.