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: This shows that power has been supplied to the machine. 4. Fuse: Protects the motor and machine from damage during power overloading. 5. Memory: The internal unit is equipped with a set memory to record usage times within a year 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 the wrong oil to prevent pump damage.