[나합격 용접·특수용접기능사] PART 01 용접일반 Chapter 02 피복아크용접(1)
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Writer Date23-12-12 00:00 Hit38 Comment0Link
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https://youtu.be/NJIvuwJHTuI 5- Connection
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PART 01 용접일반 Chapter 02 피복아크용접(1)
나합격 수험생 지원센터 운영 : cafe.naver.com/napass3
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