SUS304
About 70% of the most commonly used and worldwide stainless steel is made of SUS304. The main elements are chromium (Cr) and nickel (Ni), which are the most representative metals in (Cr-Ni series) austenitic stainless steels. It has an excellent heat resistance and the best corrosion resistance among stainless steels, so it is suitable for making water bottles or cups because it has a warming effect.