NB/T 47065.1  支座 BⅠ 50040S b=1=F

BI 50040S b=1=F

DN 90×90×90-Sch120 TR5 f1=4 c=26

wn65a-16tm0-1.0fп�k=h1=12-3fS

WN250-1500M0h404550 RFF Sch40SF6182-25115tg-06/

BL32-6 RF C=18 D11650-300 rf h=200m s=6�°wn80-1

BL450-10 RFdokf s=85F s=/ampampampam80L60j0/ s600100 RFS=

BI 2300R