Alumina heaters for encapsulated electrode

We require an encapsulated electrode. Essentially we would like to know whether your Alumina heaters would be suitable for our requirements. Would it be possible to have a sample of an encapsulated electrode (copper preferably), ideally with 1mm of Alumina insulator surrounding the metal core. At a length of 70mm ideally, but in excess of 30mm would be adequate.We can then verify it meets the mechanical and dielectric properties.I have a drawing attachment (where can I send this?) of a rough idea of what we need- I appreciate that the outer metallized layer (tungsten ideally) is not something you\\\'re likely to have lying around in a sample form. But is this something that you could make?