HG/T 20592  法兰 PL 40(B)-40 RF90EMF S=12 RF-95 h=a

PL40B)-40RF90EMF S=12 RF-95 h=a

wn 200(b)-40 fm)-50RF-

pl40b)-10rfm00/H825mpampa100ch=6M0

WN 150(B)-63 RF

WN20-1500 RF Sch160=

1 FM 500-1.0 δs=8

PL32-10RFRF1400R=78 R5RJ50TSìSCH

WN 50-1500 RJ Sch160

wn1800(b)-10 tc2

WN 25-2500 RF Sch80S20 n=12 L=32