... used in packaging stationery,MP3,MP4,clamshell packaging for toothbrush,toys,gift,hardware,Udisk... for embossing trade Mark,Sticking Label, Raincoat,Umbrella ... high frequency interference to a minimum,like TV etc.(3) Safety device:when the high frequency current load exceeds the limit ... be repair flatly and smoothly in time. HF welding machine for car mat