Stainless steel pipe is a seamless metal pipe made of stainless steel through hot rolling, cold drawing or cold rolling. It has a hollow cross-section, including square, rectangular, and circular, and has no welds around it, so it has excellent sealing and strength. Stainless steel seamless pipe has excellent corrosion resistance, high temperature resistance and pressure resistance, and can adapt to various harsh working environments. It has a variety of materials, such as 304, 316, 321, etc., and is widely used in petroleum, chemical, natural gas, electricity, shipbuilding, food, medicine, environmental protection and other fields.