How long has Krupp Armanments been supplying weapons for war?

Question

How many wars?

When did they get started? back in Thirty Years War time?

Also, what about them supplying both sides in some wars?

What other major arms manufacturers have supplied wars?

Answer 1

Krupp began making steel for Russian army in the 1840's. As they were a business (not a political entity) they did sell arms to both sides, notably during World War I.

Read about the family and the business here:
http://en.wikipedia.org/wiki/Krupp

Answer 2

why should i wish to read about that family i knew all i wanted to know after the war finished and activities of firms like Krupps and a few more still trading