The bellows is a flexible metal line element inside of the metal hose, which is responsible for flexibility and is certainly checked for leaks during the production process.
Braid is the outer part of a high-pressure metal hose, which consists of strands of stainless steel wire, depending on the diameter, from 0.3 mm thick.
Stainless steel wire braid is made on special modern braiding machines. The braid performs not only a protective role, protecting the internal flexible bellows of the sleeve from mechanical stress and harmful environmental factors.
The braid of a high-pressure metal hose is an important component that directly affects the technical characteristics of the finished product, primarily the ability to withstand the necessary parameters of the working pressure: with insufficient strength characteristics of a metal hose equipped with a single braid (one layer of wire strands), is applied a second or even third layer.