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20cr精密無縫管硬度

20cr精密無縫管的硬度是一個關鍵的性能指標，它反映了材料抵抗外力侵蝕、劃傷和變形的能力。

总数： 2 1 页次：1/1

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40cr精密無縫管外徑

20cr精密無縫管硬度