HG/T 20592  法兰 WN 25-40 RF S=5

9124.1WN25-40rf S=5

LWN 25-900 RJ Sch8

WN 80-900 RJ2-2.A2400-F(S)09fm60=1069119-9F b=3 M51

1 CRF 1500-0.620δs=8h35d=175TK=73ampampa RF0070 RF M

2 CM1200-1.6-2S=10=32/RF SR6R

pl65(b)-6RF-0.a/aaa/2024/0-150pa0-4.0n 300-

wn32(a)-25 rf s=2.51=RF=

WN50B-