(1) The use of timbers to prevent cave-in during excavation by placing them against the walls of the excavation. (2) Any temporary bracing to support loads during construction.
(1) The use of timbers to prevent cave-in during excavation by placing them against the walls of the excavation. (2) Any temporary bracing to support loads during construction.
안녕하세요. 카카오톡 상담 기능이 다시 정상적으로 작동되어 다시 오픈 되었습니다. 궁금하신 점이 있으시면 언제든지 여기 카카오톡 채널을 통해 연락주세요. 항상 감사합니다.
