... single layer ,double layers,PE EPE ,peral cotton ,three side sealing This machine is mainly applied to various single ... so on,1.PLC ,touch screen control,double photocells ,three step motor control2.mechcnism:channel steel ,steel plate3.electric:SCM , ... unwinding:two sets og unwind device5.sealing bag method:matched with vertical,sealing knife ,pneumatic control6.unwinding way: automatic dancing ...