John F. Kennedy was the US president during the Cuban Missile crisis General Secretary of the USSR was Nikita Krushchev and Fidel Castro was the Cuban ruler involved in this â¦ crisis.
What is the metal used for most electrical wiring and water pipes? Copper is the most common metal used in electrical wires because it has a structure which includes freely-moving negatively-charged particles-called electrons-which are es â¦ sential for the conduction of electricity.
DMV Piping. DMV copper pipe is a fourth type of tubing that is less commonly used. Its main use is on drains and it can also be found in old houses. It can be used also to vent plumbing fixtures, and should be used only in above ground applications. It has some yellow marks that help identify it from M type copper.