... reagent, pharmaceuticals, blood plasma, vaccine,aquatic products, fish for display and food for foreign trade.2.Daily life1.Electricity-saving, keeping cold ... keeping it in the fridge or freezer for 12hours. 2. Place the ice pack level in the fridge or freezer. ... hot packs, hand warmers, instant heaters, cold insulating agents, Ice King, blue ice, eye masks, fillet, masks, belts, insole, wine-covers, ...