A tube
Increased wall thickness of Smooth thick-walled PTFE hose allows to withstand more working pressure, but at the same time hose itself becomes less flexible.
Corrugated standard type of PTFE hoses allows to significantly increase the flexibility of the hose, but at the same time the hose withstands less working pressure.
Corrugated thick-walled PTFE hoses proved increased flexibility and increased working pressure.
Heavy wall tubing hoses are designed for operation at especially important production sites. This type hoses are hoses of maximum working pressure and minimum flexibility.