HG/T 20592  法兰 WN 25-40 RFs=43C0rfุ�

WN25-40RFs=43C0rfุ�

WN 600-300 RF B=575 hg=10-300 RF S=575 0vlRF)-255 RjRF50-

wn80-150 rf sch40 s=4 3FAsme0 rfF60500-s/ R

1 FM 500-1.0ch400-40)-1

PL 65(B)-25 RF=100F/146 1/ scRF S=S=10R(B

WN32(B)-100FMS505-150 RF B=

WN100A-300rf δs=61.0

WN 14&q