HG/T 20592  法兰 WN 350-100 RF FF44RFB)-2s1000 RF40-30h

WN350-100 RF FF44RFB)-2s1000 RF40-30h

wn25- 25rf RF Sc

WN 2"-150 RF S=3.91

WN20(A)-16 RF

WN 300(B)-16RF s=6

WN 500(B)-40 RF S=5

WN 8"-300 RF Sch60 S=10.3

BL 3/4"-900 RJ

WN65()-160RF4K=1

A WN 1000-300 RF S=10450 RF S=10-16 g s=10/1.650-