NB/T 47021  法兰 FM 800-1.0F8/data/src/public/wx

WN 50(B)-25 RF S=3h

SW 20-150 RF8RFRF0(B)-16 RF S

WN80-300 RF SC0.6 RFh4v150

WN 100(A)-300 RF S=46c

1 FF 450-1.620δs=0 S=9.530000000R20f&n20RF S

BL 40-900 RF0H40500-19112.36c

so50(b)-25m

2 RF 1900-0.620δ1=10

3 FM 600-1.620δ0=1

SO 200(B)-16 RFçC11