... engineer HDSR-V-100 BrandHuadongModelHDSR-V-100ItemRoots blowerTypeHDSR vacuum pumpFlow rate3.57-9.08 m3/minVacuum -100 ... with nitrile rubber seal rings Usage: vacuum packing, vacuum metallurgy, vacuum distillation, vacuum concentration and vacuum drying, smelting, off-gassing, rolling ... T/T against copy of B/L; L/C at sightDelivery time: within two weeks Roots type Vacuum Pump for vacuum packing