HG/T 20592  法兰 WN 300(B)-40 RF S=

WN 300(B)-40 RF S=

WN 450(B)-16 RF S=0

WN 400(B)-16 RF

BI 273

3 FF 1700-1.06r.F.0F1.0F

SO 150(B)-16 RF

lwn25-300 rf sch4

WN 150(B)-100 M S=10

PL 100-16 RF

PJ/SE 100(B)-16 RF B=41 H=159=0¬Â¢0SphprfRF-10RF7/s.5 RB=6chRFR400 STmpampampRF5rFFmpa1217.5