HG/T 20592  法兰 WN 25-160 RJch80Sam610151=35 d=108F S=0-

wn25(a)-160rjch80Sam610151=35 d=108F S=0-

BL 15-300 RJ3-1/=54 h=Fп�

wn250(b)-25rfs920 M

WN 300(B)-100 RF S=S=10

1 CFM 1100-0.61RFD=164C S=625(B)-1

wn25-25fm s=5-6dm

so80-40fmT553k=2ذگذ£ذ²ذ8 S)-1

PL 20(B)-16 RF4,50-16 FF C=

wn 65-63 fm2BRFRF