high frequency plastic seam welder machinery 1)double side sealing 2)high frequency welding ... 3)ISO9001:2008 and CE 4)reliable high frequency plastic seam welder machineryDescirption this high frequency machine is suitable for these ... embossing,leather embossing;gas mattress,boat,life jacket,toy,stationery,raincoat,plastic cover,purse handbag,leather strap,album and CD diso ...