The Democratic People's Republic of Korea, usually known as North Korea, is a state that occupies the northern half of the Korean peninsula. North Korea is a new state, founded in 1948 as a result of the postcolonial settlement handed down by the United States and the Soviet Union (USSR).
Curtain wall may refer to: 1  Curtain wall (architecture), the outer skin of a modern building. 2  Curtain wall (fortification), the outer wall of a castle or defensive wall between two bastions. 3  Curtain wall (construction), dust barriers for construction.
Since structural frames and curtain wall fabrication typically hold to different tolerance levels, unitized curtain walls may not always fit within the space that is allotted for them on paper. Curtain wall frame fabrication is typically held to a much tighter tolerance than steel and concrete construction.