Answers (1)
Silicone is the only thing I know of that is remotely close to this requirement and which is accessible within the public domain. I am not sure about the bars of pressure though.
Sounds like you are looking for a pressure cooker, but this does not have flexibility.
You might need to elaborate on this question a little more such as usage.
I have to use this bellow in the exhaust of diesel engine. We are making a slot in the exhaust pipe across cross section.The bellow is placing above this slot in the exhaust pipe.Through this bellow i'm inserting a probe to the the exhaust pipe.This probe should be fixed to bellow. and i want to move it along the cross section of exhaust pipe.
Sorry, just noticed it was for constructing bellows.