HG/T 20592  法兰 WN 500-40 RF RJ S=/

WN500(A)-40RF RJ S=/

WN500-300FF0RF=10b=1=10 h=1

WN 350-300 FM S=10.C=60

BL20(A)-100FMRF300.

PL15(A)-16 RF D= C=

pl50(b)-10rf hg=t21633

WN 32-2500 T Sch120)-16 T.116=/RF1thg206RF70c16 RFSA)-mpam

WN 450-600 FM S=280EL´=605 wn450-6/80)-1000F1J00/Fch0