Our company established in 1972.Now,we have more than 4000 workers.During the past 34 years,we are engaging the research and development of cast iron radiator without sand to the inner face. The material of cast iron enable the product has the ability of corrosion proof positively. Technology of radiators without sand to the inner face makes the heating system work under the best condition. Added smooth painting on the surface, its decoration can be greatly enhanced. We also produce copper-aluminum radiators. We adopt Tp2 copper material as the copper tube. Outside, we use aluminum as wing to optimize the radiating. On the connection, we use the special welding copper tube which used in welding ship. So, its corrosion proof can be rest assured. Based on good product qulity and excellent service,we got the certificate of ISO 9001:2000 in 2003.Following,in 2005,we were qualified the national product quality examption.