... :380V Exhaust speed :15L/S DescriptionProduct name: Automatic Vacuum MixerModel:MV-ASParameter:Power input:2KWVoltage:380VExhaust speed:15L/SMax ... and investment injection both working under vacuum condition, save your time, and reduce bubble to make a smooth surface item. It ... chamber, then add investment, after that start mixing and vacuum.When mixing finished, buzzer alarms, then start pour mixed ...