Product material: PP (Polypropylene) Working temperature: -30℃~+100℃, +110℃ can be reached but kept only for a short time Structure: Wavy shape both interiorly and exteriorly Color: Black. Other colors are customizable upon requirements. Variety available: fire retardant, FV-O Certification acquired: National Chemical Construction Material Supervision:GB/T14828.4-1993 Property: Good flexibility, smooth and bright surface, chemical corrosion resistant Application: Mainly used in automobiles wiring. But it can also be used in machineries, automatic meters and gauges, motors, protecting the cables from abrasion and providing insulation to the wires and cables. How to use: Insert the wires and cables into the pipe and fit respective types of LNE: SM-G and SM series flexible joints before using.