HG/T 20592  法兰盖 BL 350(B)-10 RF–∞–

bl350(b)-10rf–∞–

wn200-25rf s=12.5 &ampampampamp;amp;amp;amp;ampampampamp;nbsp

wn500(b)-16rfs=10’пҝҪҝҪ5 RJ@40H

wn200-25rf s=12.5  

LWN400-300 RF H=b)-

PL 450(A)-10 RF�В·Ш�

so300-16rfS=10-900

WN 80(A)-10 RF S=6

wn200-30