Tonglu Sanli Industrial Electric Furnace Plant is a member of China Heat Treatment Association, Spring Technique Group of China Mechanical Engineering Academy, China Council for the Promotion of Mechanical Trade, and China Chamber of Mechanical Commerce. We are a professional industrial manufacturer of continuous hot air tempering furnaces, continuous quenching furnaces, box-type furnaces and fittings of aluminum silicate refractory fibre furnaces. The whole staff of our company strictly follows the enterprise tenet of Earnest, Devoted, Active, Innovative, Honest, Credible, Steady, Developing, and fully utilizes the characteristics of our trademark, speciality, and large scale of an old enterprise.

By actively valuing technological innovation, technical advancement, construction of quality and reputation, our company has formed a strong market competition force in the areas of product quality, price and after-sale service. Especially in areas of design and production of super-large continuous spring tempering furnace and quenching furnace, our company takes a leading position in China. Our products are sold to all over the country, and are exported to Italy, Korea and Iran. Our products are deeply trusted by customers of spring and chain industries. Our company has contributed a lot to renovation and improvement of product quality and production efficiency and reduction of environmental pollution.