mandrel bar

• 芯棒,心棒

mandrel bar的用法和样例：

例句

1. 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。
2. The paper involves the new process employing pull mandrel for pipe-elongating with the twohigh rotary elongator.
   介绍了在二辊斜轧延伸中采用拉力芯棒轧制的新工艺。