/ http://www.slideshare.net/images/logo.gif / �ݺ�ߣShare feed for �ݺ�ߣshows by User: toanluu9216 https://cdn.slidesharecdn.com/profile-photo-toanluu9216-48x48.jpg?cb=1650294365 Giáo viên khoa Cơ khí- Trường Cao đẳng Nghề Kinh tế kỹ thuật Vinatex