HG/T 20592  法兰 WN 65(B)-25 RF S=S=4.6RF S40s=�02

WN25-600RF SCH40S rf0-1.6 30-9rf4.2H1=840 A=5760

SO100-150 RFf-0.6S=10g/009 S=4fFbml8F S S0LRF-

WN80(A)-16 RF S=5.5 A=8955rf s120S H

SO 15-600 RF=3F= RFFRJ1016RF0-1= RFFRJ1016RF1=1016

WN 65(B)-25 RF S=S=4.6RF S40s=�02

WN450-16RF/ffFRFFr0wn50(a)/mpa