... , blue, whitestandardAmerican style, European styleNylon tubing (PA tube, Polyamide tube), Trailer Air Brake Hose, seven cable volute producted ... air brake pipeline, Engine oil inlet, Engine oil return tube, pneumatic piping; every connection line of tractors, trucks, ... PA11, PA6, PE, PU 3.Excellence: have optimun in nylon chemistry and the physics stability. lightly, softly, resisting compression ...