GB/T 29465  法兰 RF 50-4F b=4=3Sch

SP-3-8 DN=615RF50-40F b=4=3Sch

1 RF 1000-0.6 δs=626=8chFa=or 10003

SO300(A)-300 RF

SO50-40 M S/h40-250R0RF40@S

WN 250(B)-16 RF S=11.5

so20-300g25-300rf

WN 12"-600 RF Sch40

wn150(b)-10g

pl200a-6rf/37 RF Sch4000F ScBF.5 RJ Sch0F Sc

20592 pl400(b)