WOER environmentally friendly flame-retardant corrugated tubes are carefully processed from environmentally friendly modified polyolefins. The products are environmentally friendly and reliable, with excellent flame-retardant effects, high mechanical load-bearing strength, good toughness, good bending performance, resistance to twisting, wear resistance, excellent resistance to acids, alkalis, inorganic salts, lubricating oils, and aging resistance. They are used for the protection of automotive and locomotive wiring harnesses, wires, and cables in harsh environments. They can be customized into split and closed-end corrugated tubes according to customer requirements.