Stainless steel tumblers are divided into: ordinary thermos cups (the heat preservation time is generally less than three hours after the boiling water is poured in), vacuum thermos cups (through the vacuuming process, the boiling water can be kept warm for more than 8 hours). Here introduce:
The feature of the stainless steel tumblers lid
The feature of the stainless steel tumblers lid introduce.
If it is an ordinary metal cup lid, it must be easily corroded, and stainless steel can be used to prevent corrosion. In addition, for a good-quality thermos cup, its stainless steel lid is also polished, and the interior is also plated with a metal reflective layer, which greatly enhances the thermal insulation performance of the cup body.