同心异径管 DN 32500×300-Ⅱ-3RC=3let/

DN 300×32500-Ⅱ-3 RC=3let/

WN150-16 RF-2009 WN15-40 RF S=309pl65b-40rf40F17 C=20 S= HF

bl25(b)-100rj/

bl25-16rf D=B=641g/t2RFï¼draw/'6FSch40F s=1.w

20592WN100-63RF6 RFS=10(A)-25 RF S=11.1

so250b-10ffmp-2

PL20-10FF

wn500(a)-900rf-0.25/for

BL12