Amir wrote:

van den hul maked a full carbon interconnect that it's name is "the first".

Hard to generalize, since different cables should be made differently for different applications and different goals.  If you tell me specifically what you are trying to do, I might be able to make some suggestions.  For some general ideas, though, I would suggest reading this tutorial:

http://www.laventure.net/tourist/cables.htm

and think about buying this book:

Armen, your notion that pricy cables might cost nothing and that it is a bad thing is absolutely bogus in my view.  I do not have need to argue this point but I think you might view into the subject deeper. Higher cost is paid for assurance to have off a shelf guaranteed result of targeted demand. The actual cost of a product is irrelevant, not to mention how much it cost to manufacture the thing.

I hope people who read/post at this site understand the difference between a “product” as an industry item and a “solution” as satisfaction of demands. Sure, it is good to make you own cables but if your objectives are just to pay less then you do it for wrong reasons. There is tone of cheeps cables out there that cost virtually nothing…