HG/T 20592  法兰 WN 250-40 RF S=10-F

WN250-40 RF S=10-F

so80-150rf b=91 δ=

WN40(B)-63 M S=≥4

WN80(B)-16 RF S=8.u00e2/

wn32a-25rfs=8.M-300RF

Wn40-16 RF H=165 B=50RF20=250 A

SO 25(B)-25 RF90h00-4.05RF160g S=≥1

asme so100-150rf==4.

HG=T20592-2009PL50(B)-16RF(B)-16

WN200-2500 RJ Sch40