The metal hose is generally composed of three parts: a bellows, a mesh sleeve and a joint. The bellows is the body of the metal hose, which plays the role of flexibility; the mesh sleeve plays the role of strengthening and shielding; the joint acts as a connection. For different use requirements, the ways of connecting them are different: the bellows, the net sleeve and the joint are connected by welding, called welding type; they are connected by mechanical clamping, called mechanical clamping type. In addition, there are two methods described above, called hybrid
