NB/T 47021  法兰 C-FM 400-1.0 δs=7.5

1 CFM 400-1.0 δs=7.5

WN 50(b)-25 FM S=4

SO 6"-150 FF

WN600(B)-16 RF S=18

WN 65(b)-25 FM S=4

WN 40(B)-63 RF S=5

wn250-900 rj l=1.S

47022cm1500-0.6

SO 20-150 RF

3 RF 900-1.06-9-2.5/F-10SRFRF S��6RF Sch40SRF Sch4400(b��F0 kSc-4b=80sch0B=38