NB/T 47065.1  支座 A 320F��SCF&@0 B=10rf6 rf s0=31671@Ш°вҖ

耳座 A320F��SCF&@0 B=10rf6 rf s0=31671@Ш°вҖ

BI 2500

47065.3 B1

3 RF300-2.57259sT205 K= Rï؟½

WN50(A)-40 RF S=5.5

NB/T47023 M600-2.5/42-120-16RF

WN400-300RF B=386.4

DN300-PN10 PL FF Ⅱ

SO 65(B)-25 RF)-Вҙ=162

bii 4000-s4000 rf-150rf sа�