... ,three side sealing This machine is mainly applied to various single layer ,double layers,PE EPE ,peral cotton ,three side sealing ... at once ,which make the productions have the characteristics of smooth non-feformable ,length accurate and so on,1. ... ,pneumatic control6.unwinding way: automatic dancing devicespecification1.max.diameter of diameter:1000mm2.max.bag width:800mm 1000mm 1200mm3.max.bag ...