NB/T 47021  法兰 FM 1200-0.25 δn=4RFRF/ n=85-1 RF S=

47021 FM1200-0.25 δn=4RFRF/ n=85-1 RF S=

wn500-150 ff

WN 150-150 RFs7621461H4/B=15 f=2F/

bl150-6ffs=10-5s=16900216II8

wn25-300rf-sch4/

Bl300-10RF S=10fh=342b=50-6rf

bl50(b)-25 RF b=4 S=3.2 f1=2.3

SO 2"-150 RF

WN600B-10FF0 RJ00-0C=31.6-16r N=10S