... , threaded (usually female), or socketed, etc. When the two ends differ in size, the fitting is called a reducing elbow or reducer elbow ... . Related Search: 90°elbow, 90degree steel elbow, 90 degree elbow,90 degree LR elbow, 90 degree stainless steel elbow, 90 degree carbon steel elbow, 90 degree alloy steel elbow,90Degree SR elbow, 90 degree ASME B16.9 seamless elbow, 90degree bend, 90 degree bend.