... long radius elbow 1. Material: 304, 304L, 321, 316, 316L, etc. 2. Standard: ASME, MSS, HG, DIN, JIS, ... GB socket welded long radius elbow Socket welded elbows is a type of ... 316, 316L, etc.2. Standard: ASME, MSS, HG, DIN, JIS, GB3. Type: 90° and 45° Socket Welded ... 2. Upper and lower values for socket weld elbow of each specification represent the maximum size and ...