Structures:
1) Bellows + Outside braid + interlock
2) Outside braid, middle double bellows, lined with inside braid and lined with inside interlock or nothing inside, and with collars on the both ends

Size can be produced as per client's requirements

Effect:
1) Automobile exhaust system component
2) Installed between engine and muffler
3) Used to decrease engine noise and vibration
4) Absorbs muffler pipe thermal expansion and shock
5) Compensates for exhaust converter misalignment
6) Reduces air pollution