High-frequency hot pressing/stamping products refer to the collective term for equipment and their products that use high-frequency electromagnetic fields (typically at frequencies of 27.12 MHz or 40.68 MHz) to rapidly and precisely heat and shape specific materials. The core working principle is to polarize the polar molecules (such as PVC molecules) within the material through the high-frequency electric field and rapidly generate heat due to dielectric loss, achieving fusion, sealing or embossing under the pressure of the mold. This is fundamentally different from ultrasonic heating that relies on mechanical vibration.