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Exhaust Method Usually Has 3 Species:

Brother Packaging Limited | Updated: Sep 28, 2015

① heat exhaust method, using the principles of thermal expansion of air, steam and food, the exclusion of air inside the tank. Hot tank sealing and Food canned heat exhaust method; II vacuum sealer and exhaust method, sealed in a vacuum tank c spray sealing exhaust steam method, sealing to the canned HeadSpace injection steam, air, drove and then sealed.