HG/T 20592  法兰盖 BL 80-16 RFB)-6RF170m��п┘п╟п�f1

BL 80-16 RFB)-6RF170m��п┘п╟п�f1

WN 50(B)-40FM s=400

WN200-63RF S=9/ d=14

bl500-150rf/0 RRF2 WN4016RF

WN1000-600RF=/T20592SCH402/h16RF S

WN32(A)-300 FM.6=64－

WN 15-150 RF S=3rf

wn100-160rfБ∙╗Б√▒

BL50B-300RF/6 RF b=2s0.40615 WN