1. Oil-filled pressure gauges can accurately display the required pressure for workers, and the standard output indicates the correct pressure. This prevents damage due to overloading. 2. The output pressure of Single and Double acting hydraulic pumps is 700kg/cm² (10000 PSI). 3. Voltage indicator: confirms that power has been supplied to the machine. 4. Fuse: protects the motor and machine from damage during power overload. 5. Memory: The internal memory records usage times over one or five years, providing a reference for product maintenance and lifespan. 6. Special oil: The oil must be changed at least once a year. Please use R-32 super special cycle oil and avoid using incorrect oil to prevent pump damage.