NB/T 47021  法兰 C-RF 1200-0.6 δs=8FoO 8

1 CRF 1200-0.6 δs=8FoO 8

wn65b-40fmF

WN200-150RF S=8

WN250-150 RF S=11.15 H1=20

C-BL500-10RFsch40C B-9SCH10S1.0-

WN 450-150 RF S=12

PL100(B)-16 RFRFDR

LWN 80-2500 RJ Sch800d1

WN450-600 FF Sch401.0/70-165RF φ=1

SO 4"-150 RF Sch120FS=3r4 S= B=2s