HG/T 20592  法兰 WN 900-40 RF) wn855660rf S4.6 δ=425=0 S5 42=7.2F

WN900-40 RF) wn855660rf S4.6 δ=425=0 S5 42=7.2F

WN10(B)-25 RF S=31165RF7040=4.3-16g s S=3

LJ 18"-300 SFM Sch120

wn50(b)-63rfs=6Sch60= f1=3 ssch

BI 2000r-1.6/70

PL40(B)-25G-60RFju6R.50(b)-16com1/0050 r0-2.5)10rf rfSc

20592PL25(B)-16RF �0 RF

Bl