... all craft features of ice bags in the markets of Europe, America and Japan and features of Chinese traditional ice ... freezer for 12 hours before use.2) Put the ice bag flat before freezing, or put it ... )Used in long distance refrigerated transport for all kinds of biology freezing reagents, medicine, blood plasma, bacterin, ... MSDS, ROHS, etc. 400g cooler box for transportion of food, goods, beverage