Aluminum elbow/Aluminum flange/Aluminum bend/Aluminum tee and reducer  is  a kind of good pipe fittings  widely used in different fields and industries and the promotion, the application and popularization of different degrees.Sheet of aluminum is the same as the pipe material in stamping die stamping into half a piece of ring elbow, then two and a half ring elbow for group in welding forming, aluminum elbow welding shall be carried out according to certain procedure production and processing.General stamping elbow in the carbon content is higher, the greater the hardness, the higher strength, but low plasticity