... machine with double head 1)double station 2)high frequency welding 3)ISO/CE 4)advance technology high frequency welding machine with double ... cap embossing,leather embossing;gas mattress,boat,life jacket,toy,stationery,raincoat,plastic cover,purse handbag,leather strap, ... the provision of nations “radio interference committee"(CISPR) with steady frequency device and prevent the leak of magnetism, ...