Single package size: 20Ft 30Ft 40Ft Material> Steel Product Type >Container Houses Design Style > Modern Warranty >1 Year Material Steel + Sandwich Panel Color Customized Color Type Light Steel Structure Frame Usage Workshop Warehouse Construction Office Structure Galvanlized Steel Frame Door Steel Security Door Main material Galvanized Steel Structure + Sandwich Panel Certification CE Certification Advantage Fast Install More information below Requests and information: flexusa@flexusainfrastructure.com