... 100-120um); Warranty period: 18-20 years under normal conditions.b. Hot-dipped galvanized, when the thickness of parts is less ... 86um. Warranty period: 45-50 years under normal conditions. B. You can choose freely the roof and wall panel, included ... have different thickness(50mm,75mm,100mm), density, color, type, etc.b. Single color corrugated steel sheet( Steel Material: Aluminum- Zinc sheet):They ...