... single-head high frequency plastic welding machine 1)plastic welding 2)ISO9001:2008/CE 3)single head 4)good quality,safe single-head high frequency plastic ... %PVC).leather and cloth etc. main applicationhigh frequency plastic packagingincluding heat sealing and trimming for upper and lower ... ;gas mattress,boat,life jacket,toy,stationery,raincoat,plastic cover,purse handbag,leather strap,album and CD ...