NB/T 47065.1  支座 BⅠ 2220-90-0.

BI 2220-90-0.

LWN 50-300 RF

BI 325 s=140L/t20615-2006RFFs)-1240

PL 20-10 RF

wn25(a)-150rf a=32 s=3b=5.60ã/500-1¦

WN350A-16RFr b=/50-25rf54400-1.6 S=80S-0.6 S=70=51S=12F

BL500-25 RF mfd=3u002 wn500-16r

wn 600-600 rf b=598 a=638 hg/t20615

47023 fm60