The transportation is convenient, especially suitable for units that frequently change construction sites; Sturdy and durable, all made of steel, with strong earthquake resistance and deformation resistance; The sealing performance is good, and the strict manufacturing process makes this trailer have good water tightness; The trailer is based on the standard steel chassis, and many combined spaces can be derived. Such as meeting rooms, dormitories, kitchens, bathrooms, etc. The standard width is 2.4 meters, the height is 2.2 meters and the length is 4 meters to 12 meters. Convenient disassembly, superior performance, stability and firmness, good shockproof performance, waterproof, fireproof and anticorrosive, and light weight. The house is a whole structure with a frame inside, and the wall is made of color steel composite plate, which can be moved as a whole and has a service life of more than 21 years. It is suitable for duty rooms, guard rooms, shops and so on. After one assembly, it can be hoisted integrally for countless times, with stable structural performance, which is an ideal choice for frequent relocation and movement, and it is also the most basic mode of RV. It can be assembled and disassembled conveniently and quickly, and the installation process only needs simple tools. On average, each person can install 21-31m2 per day, and it only takes six people two days to complete a 3K*4K standard prefabricated house.