Wheels Manufacturing is one source for QR and solid chrome-moly axles. their website doesn't seem to be working properly right now.
http://wheelsmfg.com/
Also try Loose Screws Small Bicycle Parts.
Chas. Colerich Oakland, CA USA
Amir Avitzur wrote:
> Where can I get long rear axles, that can retrofit Campy Cup & Cone hubs, to
> frames with 135mm rear OLDs?
>
> Solid and Hollow axles needed..
>
>
> Amir Avitzur
> R"G Israel