1. Large working height: The fully self-propelled elevator can meet the needs of high-altitude operations and complete various work tasks at different heights in different places.

2. High work efficiency: The fully self-propelled elevator can quickly lift and move in multiple directions, making it convenient to work in small spaces and significantly improving work efficiency.

3. Strong safety: The fully self-propelled elevator has multiple safety protection measures, such as preventing overloading, tilting, automatic parking, etc., which can provide a safe working environment and reduce the risks for workers during high-altitude operations.