cold-rolled precise seamless tubes
cold-rolled precise seamless tubes
冷轧精密无缝管
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The domestic cold-rolled precise seamless steel tubes treated for their surfaces with the galvanizing inactivation technology are tested and used for automotive brake tubes in Styre trucks.
采用国产冷轧精密无缝钢管，利用镀锌军绿色钝化表面处理技术，在斯太尔汽车用制动管上进行应用试验。
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