NB/T 47065.1  支座 A 2499

47065.4 A2499

BL RF 63K 400A50 SM Sch40SF ScF9Fq

WN500-600 RF Sch60100-1

pl80(b)-16 rf bb=910R.5RF80s Sch231

BL80-10 RFF1000-004 f1= MX=Y/

wn65(b)-100 rj s=620 RF

so350b-10fmch40S.4 D=1050

dn40hg/@BI 1000=3/4&ampampam

wn15)-16rfH1

pl40(b)-25 rf hg