HG/T 20592  法兰 WN 300(B)-16 RF S=5000(b)

WN 300(B)-16 RF S=5000(b)

pl100(B)-25RFRF.00RFF0-16RF4103

WN80-600 RF S040RF1000-0.6115003=4/

WN 25-150 RF B=24.7 t=251058

WN50(B)-63fm8f b=49S-4PL RF ⅡFC=3

lwn200-300 rf sch80s�158 b.6-3=16�80Ssp

AXB-6B)-rj1SRF B=05/0rj125rf�1.016040Fch805