NB/T 47065.1  支座 BⅡ 46000SN=110°

bii 46000SN=110°

WN RF 30K 450A Sch40 s==3/ Sch40=15108

wn500-300rf-0-470-50Rch40H2

1cfm450-1.6rF S=32)g/t20/550 R-

SO125-25RFS=3.2t40025-150

HG/T20592 WN20(B)-63RF=6/50 r0(5 D=5161f h

SO450-10 M44-105F

So25(B)-150RF0-10r

PL10(a)-40 Ff10S0 S=516 R

S