The modern thermos was invented in 1892 by British thermos physicist Sir James Dewar. At that time, he was doing research work on liquefying gas. To liquefy gas at a low temperature, he first needed t...
Uses: The shell of the thermos pot is made of bamboo, plastic, iron sheet, aluminum, stainless steel, and other materials. There is a rubber gasket at the mouth of the thermos bottle and a bowl-shaped...
1. Look at the brand of the cup, but the more expensive the better, the more cost-effective thermos cup is really good.
2. Don't just look at the weight. Most people think that the heavier the thermos...