NB/T 47022  法兰 RF 800-0.6 δ1=10

2 RF 800-0.6 δ1=10

wn500(a)-25 rf s=1234.55.6hg=1

WN25-600RJSch0S�▒Б√═Б�

WN300B-25MS=6 в”

pl400b)-40rf50 RF6RF0th

wn200-1500 rj s/0E300F10RF PLmh2

WN32-16 RF S=506rff650-2.0rfrfkF/Æ.62

wn25(b)-16fm.7mpa

wn80-300 g s/b1=74.5 b=3

WN