Low - temperature boronizing base was studied for card wires with nitrogen atmosphere as outer layer protection.

对针布齿条氮基气氛外层保护低温渗硼的方法进行了研究。

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Low - temperature boronizing base was studied for card wires with nitrogen atmosphere as outer layer protection.

对针布齿条氮基气氛外层保护低温渗硼的方法进行了研究。

youdao