GB/T 12459  同心异径管 DN 125×80-6.5RC

DN 125×80-6.5 RC

WN 500-300 RF Sch4015��

PL 40(B)-16 RF8 Sch

1 FM 500-1.0 δs=6RF0@RF

PL10(B)-10 RF35Ssch410/@-F502/@RF

bi273A WSch46G5 RJ R1000F Sch45FF�RF0300(N.5 RJ1�5 R

wn100(B)-100 RF

30403/@b wn1000-150 rf9 WN.5 RJ11�5 R

bl50-6fm650R