Hellow guys, Welcome to my website, and you are watching [한국건설안전학회 춘계포럼] #2 초청강연 건설사고 예방을 위한 스마트안전관제 기술 개발 임석빈 차장. and this vIdeo is uploaded by 국토안전관리원 at 2021-06-20T21:30:09-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
