can anyone give me the definition of "final product"?

Answer 1

It's been a few years so check to make sure I am correct.

Any product that is to be used unmodified by the user until it is disposed of.

A semi truck is a decent example. Thousands of products are used to make the vehicle: housings, nuts, bolts, stee,l plastic, etc. each of the initial products are used to form the final product of a tractor.

Answer 2

It's a product that will be used directly, rather than for making another product.