NB/T 47021  法兰 RF 500-1.0B)-25M0RS=12f/@47020

1 RF 500-1.0B)-25M0RS=12f/@47020

pl400(b)-40rf b=FRFFMh=80sf

DN 350-Sch30 CRS1150 rf b1500f6RFS/-

wn20(b)-10ms=3 rf FF

SO 500-16 rfSFh60C�п╡п≥п╟�

3 FM 700-1.0 target=

WN 25-300 M Sch60

PL500(B)-6RF16RFF5 RF

47021 RF 1700-0.25/2.5/88-1