1.optonal material:PET,PP,PVC,Hot melt glue,easy film and glass ... our factory,such as polythene(PE),polypropylene(PP),polyeste(PET),polyvinyl(PVC),hot melt glue,easy film and glass ... heating is suitable for sealing of sealing of plastic bottle(PP,PVC,PE,ABS,HDPE,PS and DURANCON),glass ... bottle and various composite plastic hose so currently it is the most ...