法兰 RF 800-1.5

NB/T47022 RF800-1.5

bl 50-2500 rf49 H1=5 S=1=1300F300 m

PL150(B)-16RFf400-0

so300(b)-16rf31603

WN700-300RFC65 k==2Mch40-2A4 FF2M6RF=240RF18F S=9.5

WN 150(B)-40 ml15

hg=t20615-2009pl400(b)-6rf/

WN20-40FM/Mt20592/

wn20-2500fm350F2.54.0- M16.850 65B)

WN