... layer ,double layers,PE EPE ,peral cotton ,three side sealing This machine is mainly applied to various single layer ,double ... non-feformable ,length accurate and so on,1.PLC ,touch screen control,double photocells ,three step motor control2.mechcnism: ... motor4.unwinding:two sets og unwind device5.sealing bag method:matched with vertical,sealing knife ,pneumatic control6.unwinding way: automatic ...