NB/T 47021  法兰 FM 500-0.6/4�77.5 RJ

NB/T47021 FM 500-0.6/4�77.5 RJ

WN 500-25 RF S=24

WN 600-150RF

WN 600-300RJ1500-s/@BL

WN 65(B)-16 RF3M14RF

WN 65(B)-10 RF S=3=12=36

WN 80-150RF Sch.160

WN 65-300 FM0MJ(a)-10RF16 RF-1

WN 80-2500 RJ Sch80S S=15 S=40-78S=8 Sc6RFB)

WN 80-300 RF S=3.2 B