... ).Material: PA, Nylon ,Polyamide2).Size: O.D.× I.D. (mm)Wall thickness (mm)Reel/coil length (m)4×2125,50,100 ... and reliable.6).Application: Fluid air,water, oil. Air brake systems Fuel lines; Instrumentation compressed air lines; Low pressure hydraulic lines ... --Double layer nylon tube,double braided tube,reinforced tube double wall nylon tube