Air hose, is used for air delivery and distribution piping systems, there are two kinds of air hose-composite air hose and inorganic air hose. Hose may be classified according to the cross section shape and material, hose manufacture stainless steel hose making is seam in jiaokou, rivet joint, flange flanging corners gaps with sealant , Before the sealing glue should be cleared surface dust and oil pollution, According to the cross section shape, hose can be divided into circular hose, rectangular hose, oval hose, such as the circular hose resistance the height of the smallest size and biggest production complex, So the application is given priority to with rectangular hose,According to the material, hose can be divided into metal hose, composite hose, macromolecule hose.