Chunlan.

1. Chunlan is a Chinese famous brand, a well-known trademark in China, a national inspection-free product, and ranks seventh among the top ten brands of air conditioners.

2. Oaks is a Chinese famous brand, a well-known trademark in China, a national inspection-free product, and ranks eighth among the top ten air-conditioning brands.

3. Chunlan air conditioner is an air conditioner brand owned by Chunlan (Group) Company, which is divided into two categories: household and commercial. Chunlan Air Conditioning launched China's first one-to-multiple variable frequency air conditioner.

4. Chunlan's scientific research achievements "Research on structural finite element analysis and its application in air conditioner design", "Research and application of sound quality assessment technology", "Analysis technology of air conditioning fan centrifugal system", "Smart Home - Future Trend" was released at the 51st to 54th International Refrigeration Technology Exchange Conference held in the United States, which is unique in the Chinese home appliance industry.