The corner tube boiler is a product with high quality and efficiency, energy saving, and less pollution to the environment, which introduced from Denmark Volund Energy Company by the original SFBW in 1985. Through the digestion and absorption of the twice introduced corner tube boiler technologies, and continuous development for years on the basis of combination with China conditions (fuel, water quality) now we have the boiler products of 10-100t/h steam boiler series and 7-160MW hot water boiler series.