Steel Flask

Thermo Cup, otherwise called a canteen, is a sort of protected holder intended to keep the temperature of its items stable. It is regularly used to save refreshments hot or cold for a lengthy time of time.container made of tempered steel or another protecting material. The internal wall is regularly made of glass or hardened steel, while the external wall is frequently made of plastic or tempered steel. The space between the internal and external walls is vacuum-fixed to limit heat move through conduction and convection.