ZQ400/500/600-2SA double-chamber vacuum packing machine vacuum packing machine is controlled by the micro-computer, which its working time is more accurate, its anti-interference is stronger and performance is more stability. Order the assumed processes of vacuum extraction, sealing, printing, cooling and aeration, as long as you press the vacuum cases lid, the machine will automatically complete in the packed products which can be prevented from oxidation, going molding, insects or getting damp, thus can e kept fresh in a prolonged storage period.