... Specifications: Diameter: 8 ≤ Φ273mm Tube length: 2 ~ 24m2. the test pressure: 10 ~ 100Mpa3. the holding time: 5 ~ 30 seconds (can ... description:1. the manufacturing level: the introduction of automatic hydraulic test unit received, Germany, Japan, the type of unit technology, ... oil pressure, high precision and responsive;2.5 the pressure test value LCD digital display, intuitive and reliable.2.6 the ...