ホイールの高周波焼入れ
https://www.youtube.com/watch?v=kYByhq-zMZw Induction hardening of wheels is a process of heating and quenching the surface of gear wheels to increase
2023-03-21
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今すぐお問い合わせ
https://www.youtube.com/watch?v=kYByhq-zMZw Induction hardening of wheels is a process of heating and quenching the surface of gear wheels to increase
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