法兰 RF 450-1.6f hg/3-20 rj sch40s asme b16.55 fF

NB/T47021-2012 RF450-1.6/f hg/3-20 rj sch40s asme b16.55 fF

WN 40(B)-25 RF

wn200-25rf s=12.5 Ãâ4RFFMb S=10/2 D=117B)-16

BL65(B)-40 RF 65B)-F2/

3 FM 600-1.643 D=155-15

bl1000-10fm0-1.

wn100-600rfclass600å92 H= ãB=4100)10f3=3

BL300-150 RFG/