HG/T 20592  法兰盖 BL 25-25 RF SCH20S.25F14sch23 rfB)

BL25-25RF SCH20S.25F14sch23 rfB)

47021 c-m 450-1.6M590NSch40

BL 3"-150 RF

WN 150-300 M S=8 A=159

SO 4"-150 RF

wn100(b)-160 ff s=9

47065.2 A1 δa=10

SO 2"-150 RF

pl200a-6rf

WN15(B)-1500RF-4J0592RFRF1f°S1=8)2/Ãf50 RFS5 RJ2A=F6m386@RFRF