**Performance Features:** 1. The inner and outer walls of the conduit are smooth with a low friction coefficient, which can reduce the resistance of wires and cables within the duct. 2. High compressive strength allows for both exposed and concealed installation within concrete without being damaged by pressure. The medium and heavy-duty conduit series are suitable for concealed installation in concrete. 3. Excellent impact resistance and heat resistance; the conduit can withstand normal compaction impacts during concrete pouring without cracking, and will not soften or deform under the setting action of concrete. 4. The conduit has excellent moisture-proof and acid-base resistance, will not rust, and is resistant to acid, alkali, and oil. Each connection point is bonded with PVC adhesive as per regulations, preventing water seepage into the conduit and enhancing moisture-proof performance, making it suitable for use in corrosive environments. 5. Good flame-retardant properties, characterized by non-flammability and difficulty to ignite. It extinguishes itself once removed from fire, and flames will not spread along the conduit. 6. The conduit has excellent insulation properties, with high dielectric breakdown voltage and no electric shock hazard. It effectively prevents accidental leakage and electric shock incidents. 7. Pest and rodent resistant; the conduit does not emit odors attractive to pests, preventing damage from gnawing. 8. Good flexibility and easy to bend; a corresponding special spring can be inserted into the conduit, allowing for bending at ambient temperature with gentle hand pressure to achieve the desired angle without heating. 9. Strong adaptability; can ensure cold bending construction even in low winter temperatures, unaffected by the season. 10. Convenient construction; when the conduit needs to be cut, it can be easily cut using a pipe cutter. PVC adhesive allows for quick and easy connection of the conduit into the desired shape for construction.