A lined pipe is a pipeline with a steel or rigid structural framework on the outside, and a lining layer made of rubber with excellent properties such as wear resistance, corrosion resistance, and temperature resistance. This combines the characteristics of metal and rubber to create a pipeline equipment that is balanced in its rigidity and flexibility. Through the physical and chemical properties of the rubber, it reduces the effects of the transported medium on the external structure, such as impact force and corrosion, resulting in the pipeline having high strength, high wear resistance, high corrosion resistance, and high-temperature resistance. This significantly extends the service life of the pipeline and reduces the cost for users.