HG/T 20592  法兰 WN 32-16 RF=sFh40S.5�

wn32-16rf=sFh40S.5�

BL 40-10 RFh11=820640s1200-s/@470g206

so 80-16rf/=95 RJF�0 RF Sc RFF

SO 50(B)-16 RF

PL 300(B)-10 RF=10hY

SO 100(B)-16 RF

WN 2"-150 RF Sch80S

WN200(a)-40MF S=6 r��

DN50-PN40 WN G Ⅱ S=2.5

WN100-16RFfm00-0.6/h4p;amp;