The product have been approved America UL Certification. 2)The product have the sound insulating quality ,pressure-resistanve, flame retardancy weaherability ,large tensile strength,strong adhesive force. 3)The product are applicable for the electric wire connection ,electrical insulating protection, automobile wire distribution etc. It is the first choice insulating material for the fields such as the automobile ,electrical home appliance, refrigeration, electronics and so on