HG/T 20592  法兰 WN 150-25 RF S=9h40S RF3FSch440ampm0RF B=38.16invokorum.htmlpamp-R-0RF-

WN150-25RF S=9h40S RF3FSch440ampm0RF B=38.16invokorum.htmlpamp-R-0RF-

47021 rf 500-1.6=60 RF

BI 40307S=hg20615pp0��Mfs2@

BL 50(B)-16RF40f4

BL15-2500RF RF S=NPT0

BL 200(B)-16RF)-6 RF=5pam

WN 80-150 RF f1=6.5

DN65-Class150 WN RF S=4

HG/T20615 LWN8