
20FT Cheap Modular Prefabricated Steel House Expandable House in China. Expandable & Movable Design: 20FT expandable container house with galvanized steel frame, easily movable and combinable for multi-function use. High Safety Standards: Earthquake resistant (Level 8), wind resistant, fire resistant (>2 hours exterior), and waterproof structure. Customizable Options: Customized colors, sizes, and layouts available. Sockets and wiring can be customized to meet national certification standards. Eco-Friendly Materials: Constructed with EPS sandwich panels and bamboo-wood fiber board, offering thermal insulation and moisture proofing. Fast Installation: Standard installation guided by technicians. Can be transported by standard semi-trailer and lifted by 25-ton crane. Complete Interior Facilities: Includes bathroom with dry-wet separation, thermal break windows/doors, and Australian standard electrical system. Direct Factory Pricing: Manufacturer direct sales ensure competitive pricing and best value for bulk orders and OEM/ODM projects. Overseas Technical Support: Professional engineers available for on-site supervision, installation guidance, and training overseas.