HG/T 20592  法兰 WN 80(B)-16 RF35740@S0-@500 RF SJ8fs2@RF@Fc0-od0-2.50RF40F-R�5

WN80(B)-16 RF35740@S0-@500 RF SJ8fs2@RF@Fc0-od0-2.50RF40F-R�5

WN 32-600 RF Sch40Srf c46.2paÃh

WN 4"-150 RF Sch1743

1 RF 700-0.6 δs=10

47065.2 A1305

SO0(B)-16 RF1000cFRF@40@S5 RJrvletFhS/6 F0

WN 80(B)-40 M S=10 Sch804h80wc-25

47065.2 A1048

WN