NB/T 47021  法兰 RF 450-1.0/59H1=1RF

47021 -rf450-1.059H1=1RF

WN300-150RFR S/40S150 RF

WN 80(B)-25 RF S=5

WN 150(B)-25 FM S=4

BL200-63Tc3)/(b)-rfF B=

PL 300(B)-6 RF)-800-F/5825fm)

WN300(B)-63RFS=10s=8=13=6 u50a2/u

bl10-100fm4/304.2h1=8�850-f/

SO40(B)-16FF B=5p kFM/21616fR)25

1 FM 650