NB/T 47022  法兰 C-G 400-0.25/20δ1=8

2 CG 400-0.2520δ1=8

wn80-150rf b/16r0S=800-/F

WN250-600 RF Sch409 WN20B-100RF S=4 16Mn0rf1

20592WN800(B)-16RF=1516‚=4

WN600-600 M3 FM400-6FM S=68MFI3 B=77

WN 25-600 RF S=NPTgh40.1 R116RFF2R

WN80-600 g´rf.5h100 S=11

WN80(B)-100RFf-1RFRFFM

20592 W