Used for seal/ weld plastic materials togther , or plastic blister to cardboard and etc . Plastic welding machine. 1.High Frequency Welding Machine GP8-K6is main application: high frequency plastic packaging (includingheat sealing and trimming for upper and lower blister, heat sealing and trimming for blister and cardboard), automobile ornaments, sunshade, trademarks, garments, shoe and cap ...