ELBOWS/TEES/REDUCERS/CAPS/STUB ENDS/CROSSE
material:A304, 304L, 321, 316, 316L
standard:ASME B16.9, MSS SP-43, DIN2605, JISB2313, GB/T12459, GB/T13401, SH3408, SH3409, HG/T21635, HG/T21631
SCH5S-SCH160