... 1.Bilateral high frequency PVC welding machine 2. PVC plastic box welding machine 3. PVC/PVC blister welding machine High Frequency PVC plastic welding ... skip the reprocessing procedure through punch machine and die cutting machine, has considerably reduced product damage and ... car, trademark, stationery box, raincoat, inflatable toy, plastic front cover, cool liquid cushion, shoes products, cushion, ...