In aerospace applications, bellows are an important component of the power system of liquid rocket engine, and its performance in low temperature environment will also have an important impact on the engine's work.

Bellows in the transmission of low temperature media such as liquid oxygen, liquid nitrogen, liquid hydrogen, in order to maintain its good mechanical properties, the material used should have the following characteristics:

1, low temperature mechanical properties, especially good impact toughness and relative elongation.

2, metallographic structure stability, to ensure the stability of parts size and shape.

3, thermoelastic effect, the material has a low elastic modulus temperature coefficient and linear expansion coefficient, to ensure the stability of the stiffness at low temperature.

Military and aerospace Corrugated Braidd Tube, with an inner tube of PTFE and an outer coating of other special materials, provide extremely reliable physical and chemical properties.