HG/T 20592  法兰盖 BL 150-16 RF B=27 FF 6 RF)/rum-2. 

PL 250(B)-25 RF

BL150-16RF B=27 FF 6 RF)/rum-2. 

LWN20-600RF B=20

bl125-6RF600f schb)-1-4.01

WN 400(B)-16 RF S=8

WN25-900 M sch

wn25-25rf66 rf10

BL 1000-10 RF h=2-1.0ampampam

47023m1600-1.0/-1.rf6u00hg/1ca-RF S=65

wn40-16 RFRF SRFF)-16RF600RJM Sch0