NB/T 47022  法兰 FF 300-1/2F4JRF@40@40Hh402.5 RJ FM�0�@5@F S640SR0F S0bR5 R311fch80S�

2 FF 300-12-F4JRF@40@40Hh402.5 RJ FM�0�@5@F S640SR0F S0bR5 R311fch80S�

47065.2 A4799

wn200-150rf asme b16.5b=8/f0-

WN80(B)-16 RF46705

WN 50(B)-16 RF3631

wn500-300rfc15-RFf92)-40fm

WN20-150RFw0RF Sch10S

WN 50(B)-16 RF1828

PL 10(B)-10 RFRF Sch

SO