Around 40% of all drylin® business is bespoke. The reason for this might be as simple as different fixing holes, where we machine fixing holes to a certain hole pattern. Or, it might be because some industries prefer to use helicoils to strengthen the fixings. So, while that would be a simple bespoke solution, the complexity could be as high as machining a special rail with a special profile, a special dimension or even with a special material. For example, our standard materials on the aluminium extrusions are 60×60 or 60×61 but we might use a 7000 series aluminium for an increased tensile strength.