The registration address of donghui energy conservation technology co. Ltd. Is located at no. 287, north of the village of the village of quang boulevard, dong shuang city, with the registration authority being the market supervision authority of dong zhong city, with the legal personality representing xiao xiao and operating in the following areas: research and development of energy-saving technologies; production and distribution: general mechanical equipment and accessories, electro-thermal equipment and accessories, metal works, electronics。