... plastic seam welder machinery 1)double side sealing 2)high frequency welding 3)ISO9001:2008 and CE 4)reliable high frequency plastic ... 30%PVC).leather and cloth etc. main applicationhigh frequency plastic packagingincluding heat sealing and trimming for upper and lower blister ... embossing;gas mattress,boat,life jacket,toy,stationery,raincoat,plastic cover,purse handbag,leather strap,album and CD diso ...