Lixin 6-wall Diamond-structure locking-design system is an saving energy multiwall sheet which developed by Gensin technical team. Compared with 4-wall R-structure, 6-wall D-structure increases impact strength and rigidity, and it also delivers high clarity and thermal insulation. The standing seam design offers modular installation of system, eliminating thermal expansion and water leakage problems. Available in 14mm, 16mm, 18mm thicknesses.