Our high quality grey iron includes copper to increase thermal conductivity and wear properties.

我们的高品质灰铁包括铜，以提高热导率和磨损性能。

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It is difficult to warrant the quality of glow-ion nitriding to grey cast iron and ductile cast iron. The basic reason is that the iron can't be washed clearly before nitriding.

灰口铸铁、球墨铸铁的辉光离子氮化质量较难保证，其根本原因在于氮化前工件清洗不当。

youdao

It is difficult to warrant the quality of glow-ion nitriding to grey cast iron and ductile cast iron. The basic reason is that the iron can't be washed clearly before nitriding.

灰口铸铁、球墨铸铁的辉光离子氮化质量较难保证，其根本原因在于氮化前工件清洗不当。

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