NB/T 47021  法兰 RF 800-1.0 δs=10

1-RF 800-1.0 δs=10

wn10-10rfFRJSch40Sch40SRF6

B WN 20-300 RF S=20

3 RF 800-1.6 δ0=10

WN250A-16FMm50-0-4.0k

bl40-16rfS20WfF Hmpampa@BL1-1.6/34-9

BL6"-150 RF

WN32-16 RF6rf Sca� RF400 LMFF0)-6RF(a)Ss2@RF@4/=1RFpa0F10 RF S=3F�M S755-R@0000

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