HG/T 20592  法兰 WN 200-160 RJh10=hf-4.0/14.5

wn200-160rjh10=hf-4.0/14.5

wn80-25rf aa=57 na=75-1.R00-0.6592-2009=100

SO25-150 RF S/u00c2/data

WN 20-900 RF Sch40S

WN100-150 RF S=10

BL500-25 RFR00R0d=c6¬041J/mSch

1 CFM 1700-0.2520δs=10quotHG2061

WN600B-10RFS=82/50rf sch3080AA=116 C=1800-1.6

1 R