2. The conversion ratio between credit card points of China Construction Bank and Air China's accompanying mileage is 20: 1, that is, 20 points are converted into Air China's accompanying mileage as 1, and the basic unit of conversion is 2000 mileage or its integer multiple.
3. The conversion ratio between China Construction Bank's credit card points and "Oriental Miles" points is 20: 1, that is, 20 points are converted into 1 points of "Oriental Miles" points, and the basic unit of conversion is 2000 points or its integer multiple.
4. The conversion ratio between credit card points of CCB and "Shenzhen Airlines Zunpeng Mileage" is 25: 1, that is, 25 points are converted into 1 "Shenzhen Airlines Zunpeng Mileage", and the basic unit of conversion is 2000 miles or its integer multiple.
5. The conversion ratio between the credit card points of China Construction Bank and the mileage of "HNA Mileage" is 18: 1, that is, the points of 18 are converted into 1 mileage of "Jinpeng Club", and the basic unit of conversion is 2000 mileage or its integer multiple.