... frequency PVC bag welding machine High Frequency Hot Water Welding Machine for Water BagFeatures: the working process: 1.Put the pvc material ... ,PU,PETG,APET,GAG and other enviroment friendly material Photoelectric sensor, synchronous collection rack, the control precision,good for material in ... time0~10S AdjustableProductivityEqual or less 6500times/8h High Frequency Hot Water Bag Welding Machine for ...