GB/T 12459  异径三通 DN 65×65×40-Sch40TRfRF1Sl=2=165

DN 40×40×65-Sch40 TRfRF1Sl=2=165

PL250B)-25RF b=5 d=3351.0.RF

pl700(a)-2.5rf1001ะà¸

WN 25-1500 RF Sch80S

WN 80(B)-16 RF S=40

WN 80-150 RF SCH40

3 FM 800-1.0

PL 700(B)-10 RF

1 FF 700-0.6 δs=8

WN 50-150 RF Sch10S��605926Ш·В°ШўВRFยด