PE foam composite PET aluminium foil seal liner is used to seal the PET containers, which the function is anti-theft, forgery, and moisture-proof (anti-leakage) and extended the product shelf life. The seal liner is sealing all kinds bottle. The seal liner will be embedded in bottle cap, so that the exposed aluminum foil, and then tightened up unto bottle cap. Through the electromagnetic induction sealing machine to induction heating bottle cap, and the bottle and the aluminum foil are bonded together to form a reliable hot-melt sealing. This product the aluminum foil and the foam are not separate.