[핫클립] 건설 폐기물들을 재활용한 모래 / Ytn 사이언스

2024 3:10
Synopsis
건설 폐기물들이 모래가 된다? 폐기물들을 선별하여 파쇄·분쇄하고 건설 현장에 활용할 수 있도록 모래·토사로 재탄생 된 거라고 ...
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