I don't believe any protective bezels, of the type you seek, are manufactured in this country. All I have seen have been advertised in the B/S/T on these forums and invariably come from USA or China etc. They vary greatly in price and materials but you can pick some of them up quite cheaply, say $35 and up plus shipping etc.
I thoroughly recommend the Bezels by Nanomizer and download. (Other bezels are available!)
I suppose some bright spark with a lathe could start up a bezel supply here in the UK or in Europe, but as the only bloke I know who has one is busy playing Dumbledore at the moment, I suppose we will have to wait.
Lathetastic!