裸线式电热元件通常用镍铬合金丝制成。

The open wire heating elements are usually made of nichrome wire.

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从加工性能上说，铬钼激冷铸铁比镍铬激冷铸铁加工性能好。

From the machinability, the Mo cold cast iron is liable machine.

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从加工性能上说，铬钼激冷铸铁比镍铬激冷铸铁加工性能好。

From the machinability, the Mo cold cast iron is liable machine.

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