HG/T 20592  法兰 WN 450-100 FM/RF/00FM21

WN450-100fm/RF/00FM21

2 RF 700-2.5 δ1=12

WN 15(B)-25 RF Sch80=3fbbFBam

WN150(A)-16RF S=11

WN15-1500RF A=168 H

WN100-63RF-7-1rjf s=6Dm n=18.=40FFG

WN 20(A)-25 RF615 WN350-600RJ

WN150-63RF9e6fCH80000T5(b)

wn 20-900 RFRF6 RF--300TF80n=

WN600(a)-300fm