Nitrogen Generator, Nitrogen Making Machine Output: 3Nm3/h Power: 5 kw Purity: more ... .1-0.65 MPa DescriptionNitrogen Generator, Nitrogen Making Machine, Nitrogen Gas Generator, Nitrogen Machine for Preservation, Nitrogen Generator For Bakery, Nitrogen Generator For FoodFeatures:1. It ... pack food and keep food fresh.2. By using the nitrogen generator, the packed food can be kept for 6 months ...