Parallel-corrugated protective hose SILVYN® FPAS PA6 21 / 16.7X21.2 BK 50M, Parallel-corrugated protective hose, Inner diameter: 16.7mm, Outer diameter: 21.2mm, Nominal size: 21, Polyamide, Halogen-free, UV-resistant, Areas of application: Mechanical engineering, Plant engineering, Mobile applications, Railway applications / vehicle construction, Indoor and outdoor use, Benefits: Increased impact resistance, Dimensionally stable, Flame-retardant, self-extinguishing according to UL 94V-2, Impact-resistant, Flexible