法兰 FM 900-0.6/60 s=10

47021 fm900-0.6/60 s=10

wn80-150 rf sh40s5RF S=5RF δ1=10b=3f b=46

bl20(b)-40 g RF/

WN 1 1/2"-150 RF

NB/T47021 FM700-1

bl200-900RF

WN25-150RFS=14

47023 fm1100-4.

wn80B)-16RFFM S/

47023 fm2100-1.6/116-260 δ

PL350-16RF SCH40ch44/

so80(b)