Simples Mikey.....one word, well hyphenated actually!
Fibre-Lyte
Though not listed on their website (
http://www.fibre-lyte.co.uk/) am led to believe that that have the towers on their CAD/CAM and can produce them in alternative materials and differing thicknesses.
Would suggest contacting them directly, previously they've always been very helpful to me, timely and competitively priced for, in general, a better product
