On the vehicle assembly line, the paint‑spray system relies on flexible conduits to feed solvent‑based paint to the spray guns. A PVC tube with a steel edge serves as the protective carrier for that fluid, shielding the hose from abrasive particles, chemical attack and occasional mechanical impacts. Its smooth interior lets the paint flow without turbulence, while the steel‑reinforced rim prevents the tube from kinking around tight bends in the robotic arm. The same type of tube is also routed through the chassis‑welding stations to supply air for pneumatic clamps and to circulate coolant to the spot‑weld heads, where the reinforced edge tolerates the high‑temperature environment. In the final‑fit area, the conduit delivers brake‑line fluid to the test rigs, and its durability reduces downtime caused by hose failure. Maintenance crews appreciate that the tube can be cut to length, fitted with standard clamps, and swapped out rapidly, keeping the production line moving.