HG/T 20592  法兰 PJ/SE 50-16 RF�∙5s/25-150

LJ/SE50(A)-16RF�∙5s/25-150

WN 32(B)-25 RF S=3Rpa

wn250(b)-150 rfRFR60

SO 25(A)-150 RFrf 2Ã100δ=6-150 RF1150rf b=212b=10n5-15

wn32-300 rf sch40 s2

bl100-63m10 H1=12 n=F00-0.6 S-30 F8 PF

WN125(B)-25FMB)-25 RFF S6 d=

WN50 B-16 RF S=36 δ061=R-(B)