Last Updated:2025/11/24

As part of the inspection, the fabricator performed spark testing on several scrap pieces to identify whether they were carbon or alloy steel.

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As part of the inspection, the fabricator performed spark testing on several scrap pieces to identify whether they were carbon or alloy steel.

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点検の一環として、加工業者は数個のスクラップ片に火花試験を行い、小片を砥石で削って出る火花を観察して炭素鋼か合金鋼かを判別した。

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