... lunch box fresh machine. vacuum and filling O2/N2/CO2,to make sure inside air quality . MAP lunch box fresh machine.Model :MAP-450 Used ... 450-550 Box/hWeight:45 kgPower supply, power:220V 50Hz 1.5KWThe set of modified atmosphere gas mix-sealing machine. Gas ... ensuring food, genuine, extending food freshness and shelf life. The machine applies (raw meat, fish, fresh fruits and vegetables, poultry, ...