NB/T 47023  法兰 RF 100-1/50�6/41)-

4 A3rf100-150�6/41)-

WN50-16 RF S=5.71.0

AXA-3 δ=56 S1

WN 20(B)-40 RF S=0as

wn600-300rf sch60&=U&

SO 32(B)-10 RF-1/1F �-

PL40B-16FM555F RjB)48=

DN25-PN16 WN RF Ⅱ S=2.7750-45

SO250B-40M510 rf d=

PL500(A)-6RFF/F/480 k=1-600 ST Sch13/4&amp166