Features: 1) Gives exhaust system a flexibility link, allowing it to absorb shock and reduce noise 2) This kind of metal hose is widely used in such industries as: a) Chemical b) Iron and steel c) Petroleum d) Machinery e) Electric power f) Rubber g) Printing and dyeing h) Medicine i) Food j) Fire fighting k) Building infrastructure l) Household appliances3) Non-standard metal hoses with all kinds of special connections and special materials available