Double Wing Expansion Box Easy Folding Folding Expansion Box House 20FT 40FT

Double Wing Expansion Box Easy Folding Folding Expansion Box House 20FT 40FT. Expandable Modular Design: 20ft folds to 20ft, expands to 37sqm; 40ft folds to 40ft, expands to 75sqm. Fast Installation System: Ready electricity and pumping systems; simple foundation with cement piers. Durable Insulation Materials: Galvanized steel sandwich panels with 50mm/75mm EPS insulation. Certified Quality & Warranty: ISO and CE certified with a 3-year warranty for mechanical reliability. Earthquake Resistant Structure: Steel structure design ensures safety against earthquakes and wind resistance. Customizable Layouts: Customized design drawings available for villas, offices, and workshops. Efficient Shipping Logistics: Two 20ft units or one 40ft unit fit into one 40HQ shipping container. Eco-Friendly & Movable: Easily movable, leak-proof, moisture-proof, and eco-friendly construction.