SUS化 -> ステンレス化 (to make something antirust or anticorrosive)
SUS304 = SS 304 is in American standard
https://mitsu-ri.net/articles/sus304-sus430
"SUSとは、『Steel Use Stainless』というステンレスを英語で表記した時の頭文字です。"
See Also
How to learn Japanese with Anime - TokyoTreat BlogDuolingo Japanese Review47 Japanese Proverbs about Life, Love, and Wisdom to Inspire You (with English translations)15 of the Easiest Languages for English Speakers to Learn https://www.susjis.info/
"ステンレス鋼材の材料記号を「SUS」と書きますが、これは錆びにくい特殊用途の鋼であることを示す"Steel Special Use Stainless"から取られています。"
https://www.theworldmaterial.com/sus304-stainless-steel-mate...
"SUS304 material is a Japnese JIS standard and the most commonly used stainless steel, containing 18% Cr and 8% Ni."
https://www.multiplex-trd.com/articles/t304-stainless-steel/
"304 Steel is one of grade from the family of 300 Steel grades (301, 302, 303, 304, 307, 316, etc)."
SUS304とSUS430の意味とは？
https://mitsu-ri.net/articles/sus304-sus430
