304 stainless steel elbow is a pipe fitting that connects two pipes with the same or different nominal diameters in the piping system, so that the pipes are bent at a certain angle. According to the angle, the most commonly used are 45¡ã, 90¡ã, 180¡ã. In addition, according to engineering needs, other abnormal angle elbows such as 60¡ã are also included. The connection methods with the pipeline include direct welding (the most common method), flange connection, threaded connection, socket connection, etc.