what does jr meam in steel production

Class: Full-size (1955–1961), Mid-size (1962–1970)Location: Hiroshima and Nagasaki, JapanPronunciation: /ˈkɒndəm/ or UK: /ˈkɒndɒm/Occupation: Sales Team Leader位置: 8600 Rockville Pike, Bethesda, MD職稱: · Ph.D.