[morzh]

I was looking far and wide, and ended up finding a bag on eBay. I can look up the numbers - size and length. I remember I could not find anything in copper in hardware stores. I think I found couple of vendors on Internet at some point but something told me to go on eBay, and I ended up buying them much cheaper. But still expensive. Aluminum of course more omnipresent and much less expensive, but then it is, well, aluminum.