... , Tools, trademark, and other special scale packing... 1. CCTV high frequency welding machine 2. 2-position operation 3. pneumatic Adv.:high ... -efficiencyINTRODUCTION:5kw double heads high frequency welding machine is suitable for raincoat ,PVC stationery welding etc ... , wallet, leather belt, mobile cleaner, electrical T pvc welding machine frequency machine 5KW-10KW