Stainless steel lined pipe adopt to compound stainless steel tube on the inner wall of outer backing pipe. This lined pipe is greatly improved in watersupply, sewage treatment, oil & nature gas transportation in the process of corrosion resistance, smooth surface, Small fluid resistance; and retain the high mechanical strength of steel pipe, pipeline was connected by welding, groove, thread connection, good sealing, it overcomes the easy corrosion to steel pipe, the defects of easy leakage and aging of plastic pipes with hot melt connection, It is an ideal product for the upgrading of gas, water and oil pipeline.