금속잡철 공종은 건축물 내부 또는 외부에서 금속 재료를 사용하여 다양한 구조물 및 시설물을 제작하고 설치하는 작업을 수행하는 공종입니다. 금속잡철 공종에서 사용되는 주요 재료와 하는 일에 [more…]
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