With some being hollow bar. Problem may be their minimum batch size, although they may be able to tell you who may stock it or you could drop lucky and they stock it for someone else or some other extrusion companies may keep it in stock.
Cheers for the tips,
I will try capalex although I only need a couple of lengths of it so may be a non-starter.
For some reason I had a few lengths of this stuff in storage for years. I finally used it to make some "one-off" items for somebody a few years ago and now they want some more the same!