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Tensile test shall be carried out on one pipe sample representing each inspection lot. But not less than one pipe sample representing each heat test.
每批检验品只抽一个钢管代表整批的来做张力测试，但是至少有一个以上样品代表整批做热度测试。
Tensile test shall be carried out on one pipe sample representing each inspection lot.
每批拉伸实验只要挑选1个样品钢管进行即可。
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