HG/T 20592  法兰 WN 600(B)-40 RF S=6ce/u00b4=60 h= FF16 RF=6F-300 RF�S=60-

WN600(B)-40 RF S=6ce/u00b4=60 h= FF16 RF=6F-300 RF�S=60-

PL50(B)-16 RF B4900-16RF-h500g/t21633-1991RFF=8 R0 T

BL150(B)-16 m.500

BL 3"-150 RF

WN 50-150 RF S=12mpampaⅡ009)-40 rf

SO 150(B)-10 FMFTfSS=10ai RF D=219 C=21

SO125-6FF-/.55S080Fampam