... ’ history since 1987.During these years, we updated L product for several times as per the requirement and feedback from our ... performance and reliable running. Character:1, Diverse seals are available for different gases.2, Diverse styles: Vertical, Horizontal, Pressure, VacuumSpecification:Pressure ... rise::9.8~58.8kPa;Vacuum: Flow:1.58~371 m3/minVacuum Degree: -9.8~-39.2 kPa;Application:Widely used ...