HG/T 20592  法兰 WN 65-16 RF S=/n350-600rfr0=1

WN65-16 RF S=/n350-600rfr0=1

wn65-1500M-s/H/0666B=34 H=45070-13

WN50-300RFB= S=0= s

WN40-300 RF Sch40 A=4S=61æ�

WN300-1500 RJ=12150(B)-16

BL15(B)-40 RF43-2 BB=27 S= SS=3H=1300-4.0/12

BL25-150 FF CK=-5 T4040

pl50(b)-10 ff c=14 l= n= k=RF30

pl50(b)-