Seoul city designs "silent" safety rule book for f… stocking 0 77 2020.11.20 14:43 https://youtu.be/lognGyCVB3s + 3 서울시, `외국인 건설근로자 안전교육` 통번역 필요 없는 그림책으로 The Seoul Metropolitan Government has designed a so-called "silent" safety education book ...