HHB-700A Electromagnetic Pump 0.75KW Small Electric Hydraulic Pump Portable Foot Switch 1. One step forward to release oil, one step backward to return oil Convenient and quick, high efficiency of pressure relief 2. Shockproof Pressure Gauge Stable and clear indication of the instrument Effective to avoid the impact of the vibration produced by the 3. All-copper connector All-copper material, high hardness Rust-free, long service life 4. Injection port The injection port must be loosened when working to avoid the tank sealing causes Piston pump can not suck oil