TUOSHIDA Electric Co., Ltd. is a high-tech enterprise specialising in energy-saving diagnosis, energy-saving evaluation, energy-saving consultation, energy-saving transformation and energy-saving research and development, production and sales of intermediate frequency induction heating complete sets of equipment in the foundry industry. Successfully developed a complete set of energy-saving new half-bridge series resonance medium-frequency induction heating equipment. The equipment has obvious advantages of energy saving and environmental protection. It has been selected by the Chinese Academy of Electric Power Sciences as the best equipment for energy replacement and energy-saving transformation and upgrading of EMC energy management projects. We also independently developed an intermediate frequency Internet information transmission and management application platform, and became the first manufacturer in China to use the Internet to collect and transmit.