If the product is of high value, it is recommended to use VIP insulation box. If refrigerated frozen food such as ice cream is transported, a combination of corrugated cartons and waste cotton bags can be used. The products are cost-effective. The carton presents the loading function, and the outstanding performance of waste cotton bag is heat preservation. According to the transportation time and internal capacity, choose the appropriate ice bag to fill, in order to enhance the insulation effect. You can also inform your company of the required thermal insulation time and product situation, our company for professional design of thermal insulation bags. For specific test data, please contact Hangzhou Qiyao New Material Co., LTD.