This is caused by a couple working in the environmental group invented. This is their picture. Entered, there are two stainless steel straws, SUS304 and <br>SUS316. Both contain chromium and nickel, but the nickel content is higher in the SUS316. In addition, molybdenum is added in SUS316, SUS316 which may enable more by acids. SUS316 for all and lemon juice every day. SUS304 is suitable for water and tea.
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