HG/T 20592  法兰 WN 80(B)-63 RF S=0-R-1RF040S Sc RF FF@�â³Ã�0@S5 RJr40fp10 rf/statME B1

WN 80(B)-63RF S=0-R-1RF040S Sc RF FF@��0@S5 RJr40fp10 rf/statME B1

DN50-PN63 WN

so400-16mL150Tb=30/B

SO 1 1/2"-150 RF

SO 25-150 RF

WN 25-150 RF

WN40(B)-63FM S=5

SO 1"-150 RF

WN 600-600 RF

BL 4"-150 RF�S@RF@443R�J S=3.6-