A double skinned aluminium profile with polyurethane insulating Main for enhanced u-values and sound proofing. Roller shutter upkeep contains monitor lubricating with silicone spray, inspecting for loose bolts or screws, and making certain almost nothing is bent or damaged. Our industrial roller shutters are constructed with longevity in mind – https://serrande-industriali45566.dm-blog.com/38638953/the-ultimate-guide-to-industrial-shutters