法兰 BL 500-300 RF50-40RF W0-1

bl500-300RF50-40RF W0-1

HG/T21599 BL400-10RF

wn10-100 fm

wn80(b)-25 g s=6 s=12-1052120/cM/RFF=30 C/

PL150A-10RF

WN 700(B)-16 RF S=10F.646-

A 1800

hg/t 20592-2009 bl50(b)-16rf0 RF-1R b=14(a)/

HP-2 δ=20 S1=20

SO250-10RF HG/T111

WN25(B)-16RFS50rf l=264