... tube for Air Brake System Made from PA material Available in a variety of colors and sizes, weather ... °FTubing meets SAE J844 and DOT FMVSS 106 require • Material:PA,PU etc. • Hose size(OD*ID):12×9,12×8 ... ,70,60,50mm etc. • Helix turns/coil:12,16,18,20,22,24,26,28,30 coils.etc. •Stretched length:5m ... M16,M18 ,M22 ,1/2"fittings etc. or no fitting PA Air Brake tube