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The results indicate that the influence of the metal mandrel is constant.
结果表明，金属芯棒的影响是恒定的。
youdao
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Non-mandrel drawing is a method widely used in cold drawn pipe production.
棒 拔制是冷拔钢管生产中应用最广泛的一种生产方法。
youdao
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Non-mandrel drawing is a method widely used in cold drawn pipe production.
棒 拔制是冷拔钢管生产中应用最广泛的一种生产方法。
youdao