Hum.
The domain has no value for me. I'm sorry :/
Why ?
OVT for "alupack": 0
Google Results for "alupack": 957
Yahoo Results for "alupack": 714
So how to increase the value ?
1.-> Develop a minimum page.
2.-> refer it on google, yahoo, msn to be on the third first results.
3.-> Contact the alupack.net, coppicealupack.com and alupac.com's owners and tell them why they need to buy your domain name...(like visitors number, ranking on the web, etc...)
4.-> Sell it for high $XX or low $XXX
Well, I think that can be a good one. I would take a clother look at the google results and select a few companies who produce or deal with alupack products. To these companies I would offer the name alupack.com via e-mail. May be it's a good opportunity in their eyes. If you get no answer or response, don't give up. Try the next company. This business needs much patience sometimes.
I would offer it for high $$$ or even low $$$$.
Btw, alupak.com is a owned by a company in Switzerland. Perhaps they are interested to buy your version also.
Though to prevent troubles you should be sure that the term "alupack" is no registered trademark or brand.