GB/T 12459  同心异径管 DN 400×200-Ⅱ-10RC

DN 400×200-Ⅱ-10 RC

1 CRF 600-1.6 δ Sc

so150-150FF500àmpampam6

LWN 2"-900 RF H=4R

WN125-900 RF Sch40898840sAA

WN 150-150 RF S=5.5

WN300-600 RF S=10

WN125(B)-63 M6 rf9 BL10-16 RF(b)-1

WN 25(B)-25 RF S=15

WN80(B)-16 RF.0(B)-6thg206 H=20î´=52