The CEEF company was founded in 1978. It is a professional factory on the production of energy saving and environmental protection products, an earliest and largest carrier heating furnace designer and manufacturer in China. With the accumulation of over 30 years' experience, the company has developed into the biggest research and development base of heat carrier furnaces in home and the manufacture unit of national economic and trade community which carries on the national greattechnical equipment project of creation and development of home-made parts---super large heat carrier furnaces. Now it has formed products structures like heat carrier furnaces series (conduction furnaces, molten salt) and pressurecontainer series (one or two kind pressure-bearing container, structure, oil recycle equipment). The company has been honored with many titles in states, provincial and ministerial level.