Glass inner vacuum thermos flask insulation best. Most of the good bottles of glass inner vacuum thermos flasks use double layer material to vacuum insulation. These thermos flasks called double wall stainless steel thermos flask or double wall stainless steel vacuum air pot. Thermos are not only small but also easy to heat, and the heat transfer of the bottle is much lower than that of plastic and stainless steel. So thermos insulation best performance.
As a China thermos flask manufacturer, we can wholesale vacuum double wall stainless steel coffee jug, double wall stainless steel vacuum air pot, stianless steel double layer vacuum flask, glass inner vacuum thermos flask, vacuum double wall stainless steel thermos flask, double wall stainless steel thermos flask and so on.
