HG/T 20592  法兰 SW 20-63 RF

sw 20-63 RF

LWN20-150 RF H=150�d=&ampampampampamp

BL 4"-300 LM scS=18 AS=600c=25 b=3 d=2

hg/t20615wn250-150rf法兰盖-10

BL150-150 RF

WN250A-63M040S S.5/6h66RF)-25RF6R=22.2F 0C-145

SO80-150 RF 19=�я┌б

WN250(B)-40 RF S=20

WN3-300RF06