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.
Pipe Fittings are applied to connect two pipe ends together, to change direction or size of the pipes. There are many different types and shapes on the market. Pipes are made of either plastic or metal and so as pipe fittings. Most of the pipe fittings are rounded shape, but not always.