GB/T 12459  同心异径管 DN 580×15-Sch120RCS=2

DN 580×15-Sch120 RCS=2

WN15-25RF S=60S-150H16000

wn500-150rf-1.M 500-1.616RF S

WN 80(B)-25 fm S=6T.6fch605/13S=18/ker=jmxiSt;-1500 RF

WN20(B)-600RJ S=4F800- f2=6r

WN15-300 FMF s=20 Sch160FM6.RF010Җrf0RFRF S

WN40-40RF S=7/HFM0 rF=2S=48MB03.5

SH3406