Right.2010-12. A flexible hose, typically used on moving parts of a vehicle, which carries / delivers fluid to various components of the braking system. A solid tube, typically mounted to the chassis or frame, which carries / delivers fluid to various components of the braking system. From 08/04/2008. From 10/13/2011. From 10/17/2011. To 10/13/2011. To 10/17/2011. ASSEMBLY -. Line. FLEXIBLE. PIPE.