2, stainless steel material. If you like to drink hot water often, choose a stainless steel cup. Stainless steel cups have good thermal insulation, so you don't have to worry about getting hot when you connect hot water. Now the stainless steel material basically meets the national standards, does not contain any heavy metals, and is very easy to clean.
3. Ceramic materials. In addition to glass, if it is used in the office, it is recommended to make it with ceramics. Ceramic cup is also a common cup in life. Ceramic cups are usually smooth to the touch and can be made into various patterns and shapes. The appearance is basically perfect, the only drawback is that they are very easy to break. If you accidentally fall off the table, you will basically lose the cup.