“신기술로 층간소음 잡아라”…건설 업계 절치부심 / KBS 2024.11.25. KBSNews 0 14 8시간전 https://www.youtube.com/watch?v=IyeE9hF24wc + 1 https://www.youtube.com/feeds/videos.xml?channel_id=UCcQTRi69dsVYHN3ex… + 1 “신기술로 층간소음 잡아라”…건설 업계 절치부심 / KBS 2024.11.25.