HG/T 20592  法兰盖 BL 300-16 RF’j=10p00 RF=2

BL300-16RF’j=10p00 RF=2

BL 40 -150 rf01.cSCH--0.60 RF/ch4r63

WN 250-150 RF)-16325F Sch16/0-150r2=-3

BL100(B)-10 RF�½Ãƒâ t�╚п

SW25(B)-10 RFfh40300fm8cch40SÂ-pf/

BI 450 h=500 �-16rf-6RF.6/=5mm0 FF TR

BL500(B)-10 FF S=6f/2=219 C

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