Stainless steel vacuum flask has the function of heat preservation and cold preservation. Ordinary vacuum flasks have poor heat preservation and cold preservation functions. The effect of vacuum flask is much better. We can use vacuum flask to fill ice water or ice cubes in hot weather. , So that you can enjoy the icy feeling at any time, can be filled with hot water in winter, so that you can drink hot water at any time.
The stainless steel vacuum flask can be customized according to requirements, and the operation is relatively flexible and simple. Therefore, more and more people regard the stainless steel vacuum flask as a gift to friends, customers, and promotional gifts. Do it on the cup body or on the lid Send your own company information or deliver blessings and other content. This kind of customized gift is being accepted by more and more people.