GB/T 12459  同心异径管 DN 32×25-3RC/T 20592-200960Arf 1JsRF@Fa1&RFFrf0rfRFS 358rf01a6r

DN 32×25-3 RC/T 20592-200960Arf 1JsRF@Fa1&RFFrf0rfRFS 358rf01a6r

DN 1000-10 TS

wn 200-300 rf sch40

2 c-g 700-1.6

so 25(b)-150rff&a155am.6FRF

WN 150(B)-25 T S=8

WN 200(B)-16 T S=4

WN100-300 RF4FcF S800@RFF Sch30S/@so10ch0F8.9*6mp

WN50(B)-25RF,S=10

WN