NB/T 47021  法兰 RF 1600-0.25/55 п©Б∙0-1

1 RF 1600-0.25/55 п©Б∙0-1

SOH RF 20K A 50A�64bl100-16rf135

LF/SE 25-150 RF Sch10S A= h= S1

3 RF 600-2.5 δ0=12

BL 750-300 RF S=18M Sch40b)-6 rf rf/u00c3

bl800-6ff5 rfCs=

PL100(B)-6RF10MS S.010F S=6 rf0/70

so125-150 rf s/

bl300-40T RF Sc/93.5*2