متى أنتجت اول دفعة من صواريخ (سام 6) الروسية؟
The system entered an extended testing period between 1959 and 1966, after overcoming the technical difficulties of producing the 2K12 "Kub" the system was accepted into service on 23 January 1967 and went into production that same year.
1959 and 1966