GB/T 12459  同心异径管 DN 40×25-Ⅱ-3.5RC

SO 150-150 RF1F1.0/60 R3 Fh400r

DN 40×25-Ⅱ-3.5 RC

PL 450(B)-10 RF

TPB-3S=3 B= b=3=8F S=615ch80Sch40B=210S0rmp;eqid15 wn600-150f

BL40(A)-10FF4/9)-Mл

SO25B-16 RFfm s=509/h=75/f f1=1.6=55F H=19119-147CH806 r

WN 40-150 rf

WN 250-300 RF RF-5

WN 40-300