Stainless steel duct: Features a stainless steel duct, beautiful appearance, smooth wall, low resistance, air tightness, high bearing strength, can fit very complex exhaust project. 2, can be excluded combustible and non-combustible gases of chemical corrosion, without the need for additional devices sprinkler equipment. 3, made of stainless steel, strong material, is easy to maintain integrity. 4, stainless steel duct ectfe coating interior coating, highly resistant to chemical acid resistance, impact resistance, corrosion resistance and high temperature, 300 ℉ (-66 ℃ ~ 149 ℃) between ~ its applicable temperature 150 ℉. 5, the use of computer-aided designed, easy to install. No fire extinguishing devices can be used in the environment, saving the cost of installing fire-fighting equipment. 6, its cost is higher than galvanized duct, convenient transportation and adaptation to change the scene. Use of a stainless steel air duct, clean rooms, 2, the semiconductor industry, three, printed circuit board industry, 3, petroleum chemical industry, four, pharmaceutical industry, 5, pulp and paper industry, 6, food processing industry, 7, including flammable, volatile, corrosive chemicals in the laboratory, industrial or any Facility for corrosive, flammable exhaust pipe and the delivery output.