Mudanjiang City, the northeast are hot air curtain factory in 1995 by the Committee on Science and Technology of Heilongjiang Province, Heilongjiang Province, Heilongjiang Province Department of Finance approved the first batch of private science and technology enterprises, since its inception to the production of hot air from a single-screen development of varieties capable of producing more than 10 , nearly a hundred kinds of specifications supporting HVAC products are various ……