엘보용접 [ 40A ] 및 전류치조정 [배관기능장.에너지관리기능장]
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Channel: 자격증은 오쌤
Views: 5,958
Rating: undefined out of 5
Keywords: 엘보, 엘보용접, 용접, 40A, 배관기능장, 에너지관리기능장, 에너지기능장, 실기
Id: kFI5a30OEOk
Channel Id: undefined
Length: 19min 57sec (1197 seconds)
Published: Mon Feb 19 2024
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