1.Special design makes sealing and shrinking simultaneously; 2.automatic outfeed conveyor enable a faster production; 3.adjust the sealing areas to achieve the upmost packing effect. 4.stable ,efficient performance sealing,durable and easy maintenance heater wire. 5.after sealing, the products can be adjusted to the suitable location entering the shrink tunnel to make the shrinkage stable. 6.reserve another set of shrink tunnel,easy check and maintenance . 7.adopt special design heater wire, high speed and balance. 8.energy-saving,inner heater and air-circulation design guarantees to work with all kinds of packing materials.