HG/T 20592  法兰 WN 350(B)-25 RF S=30=1=7F S ScF- C HG/1S-1ÂS=5.9 A

WN 350(B)-25 RF S=30=1=7F S ScF- C HG/1S-1ÂS=5.9 A

BL 80(B)-40 FM

BL600-16 RFmFu0-0.6.m300RF B�

SO50-150 RF SF S=0-3

3 B5-900R-1L0RJ150RS

BL800(a)-6RFfs=26N100-90½Ã

so 600-300 RF 80(B)-â€31F)-40 rf f1/H=02&32R20=

pl40(b)-10 rf=90ch40F5-6 S585