This machine is not only suitable for OPP packing but also for machine the PVC��HDPE��LDPE of hot-cutting and edge-sealing. According to the customer's requirements, it can be fitted ultrasonic,air-punch and double-tape gluing device. The machine has such features as microcomputer controlling, transducer regulating, photoelectric tracking and tension adjusting, with high automatic function and stable performance, easy to operate. Which is widely used for making plastic bags.