Lixin X-structure gives these sheets extra-strength, rigidity and outstanding insulation. It can support greater purlin spacing, allowing less usage of profiles. The enhanced oblique support play a positive role of hollow sheet stability. Lixin 3-wall X-structure hollow sheet are available in two widths, width 2100 is available in 12mm, 14mm, and 16mm thicknesses; width 1220 is available in 12mm,   14mm, 16mm, 18mm thicknesses.