NB/T 47022  法兰 G 900-1.6F´=68 h=17062-1

47022G900-1.60F´=68 h=17062-1

wn300-300rfs=6.3- RF Sch40S-9 45E3DF B=4

و³•ه…° WN 150(B)-16RF s=60(B)-10 RF S=5/ s=4/RF

WN 25(B)-16 FM S=4h40300-F040

BI 80064RFB=-16 FF�∙ rf

WN32B-40G93epa

3 fM 700-6.4-=3â=3.5 b=32-150uot0 H=165F

wn600