the principle of the thermos cup is that it has a two-layer structure with a high vacuum state in the middle, which can block convection and heat dissipation. at th...

when you have a thermos mug, its quality and capacity are a foregone conclusion. if you want to improve the insulation effect of the thermos mug, you can only start...

the exterior is smooth and odorless. after pouring boiling water, the thermos cup that does not feel hot in your hand can be called a good cup. the inside and outsi...

i often use a cup to make tea, make tea, and even various drugs. when it grows up, it is easy to stick a layer of tea stain on the glass surface, which not only aff...

one: when buying a vacuum flask, you must go to a regular store to buy it, at least from the source of goods, and dont endanger your health for petty profits; 2: wh...

1. what is a double-layer glass?there are many types of glass, generally divided into single-layer glass, double-layer glass, crystal glass, glass office glass, glas...