... /N2/CO2,to make sure inside air quality . MAP lunch box fresh machine.Model :MAP-450 Used pressure :0.6-0 ... to customer requirementsDimensions: 1200*860*1650 mmPacking speed: 450-550 Box/hWeight:45 kgPower supply, power:220V 50Hz 1.5KWThe set ... , etc.), can achieve a high-grade fresh shelf-life, food safer does not affect the taste of food, gas and transfer ...