Rotary vane vacuum pumps are the first option for vacuum packaging. Dry screw vacuum pumps, vacuum boosters, liquid ring vacuum pumps, claw vacuum pumps and rotary lobe blowers also have specific roles in packaging. Just about every of them delivers its personal unique gain according to the specific software. https://modified-atmosphere-packa59360.wikitron.com/1500909/not_known_details_about_granule_packaging_machines