Rarely, other fibres such as paper or wood or asbestos have been used. The polymer is usually an epoxy, vinylester or polyester thermosetting plastic, and phenol formaldehyde resins are still in use. FRPs are commonly used in the aerospace, automotive, marine, construction industries and ballistic armor.
On  March 31, 1933, the U.S. Congress enacted legislation creating the Civilian Conservation Corps (CCC), a Depression-era federal agency. The CCC was one of the New Deal programs initiated in the first one hundred days of Franklin D. Roosevelt's presidential administration.
Back in the depression years of the 1930's the Civilian Conservation Corps (CCC) was an organization of the US Government organized to put young men to work on public works prâ¦ojects. Among other projhects, the CCC built a significant part of what is now our National Park System.