A lined rubber tube is a pipeline device with a steel or rigid structure as its outer casing, featuring a lining made of high-performance rubber that is wear-resistant, corrosion-proof, and temperature-resistant. This combines the properties of metal and rubber to create a balanced combination of rigidity and flexibility. The rubber's inherent physical and chemical properties reduce the impact and corrosion on the external structure of the pipeline medium, resulting in enhanced strength, wear resistance, corrosion resistance, and high-temperature tolerance. This significantly extends the lifespan of the pipeline and lowers the cost for users.