Stainless steel composite pipe made of stainless steel and carbon structural steel, two kinds of metal materials using non-destructive pressure synchronous composite materials, both stainless steel anti-corrosion wear and excellent beautiful appearance, as well as carbon steel, the flexural strength and impact resistance . Composite national energy-saving and universal principles. Stainless steel composite pipe was formally promulgated national standards GB/T18704-2002 2002, from the selection, testing and other aspects of quality of materials has a set of strict and standardized management, is now widely used in bridges due to the advantages of luxury and beauty World Pipe network informed, cheap, fence, decoration, vehicle accessories, conveyor roller, textile machinery World Pipe network informed, accessories, and other fields.