HLM-2 Theory densitometer Double-barrel test Theory densitometer Double-barrel test improve work efficiency. High-frequency low-amplitude Shocks exhaust method, the exhaust more thorough, plexiglass container, does not leak, do not crack. Use of imported vacuum pumps Double-barrel test, improve work efficiency. High-frequency low-amplitude Shocks exhaust method, the exhaust more thorough, plexiglass container, does not leak, do not crack. Use of imported vacuum pumps, vacuum pump oil return phenomenon does not exist. Main technical parameters: Oscillation Gap:3min Vacuum: -0.1MPa Container volume: 5000ml × 2 Oscillation mode: Continuous / gap Power: 300W