NB/T 47065.1  支座 A 20000 AA=16h4h

Csa20000 AA=16h4h

wn50-150 rf s2120 s=

wn500-900rj-sc/BBch80f5R00

wn450a-300fm510017 pl507C bmb)

WN50(A)-25 M S=4.50-1F

PL350b-6rf L=1-1Fmpam16050

wn250(b)-25rf s=16mp

WN80(b)-16rf-1�é�300RF Sch80Ff2.5/

pl100(a)-10RFA25A150 rf0-1.00354

nb/t470