The temperature inside the car is constant at 24-26 degrees all the year round, with cold wind in summer and warm wind in winter. There is no refrigerator in the car and no food preservation service. Your behavior of sending ice cream thousands of miles away is very touching, but there is really no good way. Put it in a heat preservation tube and do your best. Above all, it's a gift.

The other D22 is a car from Changchun to Beijing. How can I get from Beijing to Siping by this bus?