NB/T 47022  法兰 C-RF 300-1.0/20δRF(b)-

2 CRF 300-1.020δRF(b)-

BL400(b)-10rf0r12h100-1

WN80(B)-40MS=625rfM/0I

bl40-1500rj

BI550-s δ4=1216R/316GF

wn250-150rj RF=6(B)-16R-1

SW15B-100 MF1

WN 250-900 M Sch60F g SCH40

2 RF 600-4.0F K=1

BL 40-100 RF 900-0.6F80RFFF1000RFSf@4RJc2/u004-R rf4FwRF