HG/T 20592  法兰 PL 100(B)-16 FF b=4

PL100(B)-16FF b=4

SO80-150RF HG50 RF S=10F0-150rf300 Sch

bl500-6g½10s=6Sch

WN 40(B)-25 M-1.6/b=3RFRF700-1.=135

PL 20(B)-16 RF6=-195 h=umWN2Fh125-16rf s=4.0F

B WN 30"-900 RF B=762

47023 FM900-4.0 H=17

wn100(b)-63 fm s/6 d=1

1 FM600-1=1456F09

H