NB/T 47065.1  支座 BⅡ 1750b)6RFFFB=

BII 1750b)6RFFFB=

WN150B-63RF S=6.6RFF Sc

PL250(A)-16 RF5=B=49=158 b1040SF50/RF HRF-40t500ampamp SCH8FFF

SO 20-300 G1300=r01=f12-060-1.6 δ0=8h80sF Sch8Sc467Ff

WN150(A)-40RFB=6/h42RF RFF=1

WN3-300RF0C

wn50(a)-40rf S=4-1500mF.5h

WN250(B)-16 RF

WN 250