Size:5  |  Colour:D Product Name: Divided lunch box / lunch box,Material: PP, 304 stainless steel, silica gel,Suggested crowd: universal,Applicable: school, restaurant, picnic, etc.Number of floors: 1 floor,Holding time: about 1 hour, add insulation bag for about 1-2 hours.Before use, please wash the polishing wax on the stainless steel surface with detergent or boiling water and vinegar, and dry it.After each use, thoroughly clean and dry with a sponge or a soft cloth to keep the stainless steel clean and hygienic.The insulated plate is a container made of double-layer plastic or stainless steel with a vacuum layer or a heat insulation layer. The top is covered and the seal is tight. The vacuum layer or the heat insulation layer can delay the heat dissipation of the food inside to achieve the heat preservation. the goal of. The insulated lunch box is developed from the thermos bottle, and the heat preservation principle is the same as the thermos bottle. There are three ways to spread heat: radiation, convection, and transmission. The silver inner tank in the cooler can reflect the heat radiation, and the vacuum layer or the heat insulation layer of the cup body can block the heat transfer.Our similar products are continuously updated, welcome to shop.
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