NB/T 47023  法兰 FM 850-2.5 ch1/4b=3 C=1850S401=42 D=1RFc

NB/T47023 FM850-2.5 ch1/4b=3 C=1850S401=42 D=1RFc

wn 200-10 RF S=15=H=66=11800 RF RF

PL80(B)-16RF=375 K=320 BB=219 C=3 s=6/ch

WN 25(B)-16 RF S=3 D/AMs=8.5-16 FMc46F5 4

wn250(B)-16RF S=4.5-4.0 δ=54 H=15558’

so65(B)-40RFb=3/6615/B) S=4¯ Ã=5.081S