1 The product has excellent physical strength and soft performance. It applies external force to the electric heating film which can make the electric heating element and the heated object make good contact 2 one-time pouring molding no foaming when heated at 220 3 can be made into any shape including cone shape cylindrical shape various openings have been reserved for easy installation 4 light weight the thickness can be adjusted in a wide range small heat capacity can quickly heating rate and high temperature control accuracy 5 has good weather resistance and aging resistance effectively prevents product surface cracking and enhances mechanical strength greatly prolonging the service life of the product