NB/T 47022  法兰 FF 400-1.

2 FF 400-1.

LWN 40-1500 FMmpKh40SRL1.0Sc0pampampa1500

WN 150(B)-16 RF S=6nb52H=9

PL150(B)-25 RF C=20RF0h30 h=1554fs4-2RF0

wn100(a)-25rf s=4. aa=114

WN 3/4"-300 RF Sch40S78 &a0B WN400-600s=61h8=

PL20(B)-16 RF F S.

wn500(B)-16 RF S=1

SO25-300 RF