NB/T 47021  法兰 M 500-1.0 b1=990FTfch400-h40f/public/data/src/public/public/blue/watermark.png

wn rF 16K 50AL80 FFR0(a)-168.

3 FM 900-2.5 δ0=10

WN 2"-1500 RF S=4.5

WN25-300 G S=34 n=246/50

LWN40-300 RF00(b)-10rf=630 K=585

PL700(B)-25 RF Sc240

PL 25(B)-16 RF rf d=134 k=106 bb=/C=20

SO80-10RF61F1=12)-M-10 rf b=F0 6 RF´=63-f/

wn200(b)-100