... operation,smooth product,nice appearance,high-strength thermal edge sealing,high speed for gusset standing bag-making Application:This ... main unwinding, with air lock device, K type folding structure,LPC web guider device.4. Horizontal air shaft for ... manmachineinterface.9. Equipped with Pneumatic multi-function auto punching device,trim cutting and auto rewinding and static eliminator10. Punching ...