NB/T 47022  法兰 RF 1000-0.25RF S=10 K= D= b= C= n= L=

2 RF 1000-0.25RF S=10 K= D= b= C= n= L=

WN300-150 RF A= D= K= L= n= C= N= H= und

IF 50-150 RF H= s79-14hu8u008/=8-=12B)-106RFfms=.533d

WN65(B)-10RFch80Smp16080 R5012

PL250(b)-6rf/0SH1=1= S=6.3 0260625R=315RF D=510 S

PL 15-10 RF B=140 d00-fS FMWN40-4