NB/T 47023  法兰 RF 1250-4.0/45E10S0S=40.

3 RF 1250-4.045E10S0S=40.

WN200(B)-63 m100-1

WN 250-600RJF

wn250(a)-300rfnW1

WN 150-300 RF S=B=154

BL40-900RJ6Sch0 RF6- S=3-0.6-160)-25rf S

PL80-10RF80 l=2404R0S0

WN RF 5K80A6 R Rch40S=S=6s= S=10S=8RS 90

wn32-1500t-40r.

LWN 50-300 RF H=220cg82-11=37