董明珠回应格力拒用铝代铜，称铝技术未达同等保障

Group 1 - The core viewpoint of the article is that Dong Mingzhu, the chairwoman of Gree Electric Appliances, insists on not using aluminum as a substitute for copper due to the current technological limitations of aluminum compared to copper [2] Group 2 - Dong Mingzhu emphasizes that aluminum has not yet reached the same technical conditions and guarantees as copper, which is crucial for the quality and reliability of Gree's products [2]