What is the sales department house model called

Sales department house model called sand table. Sand table is based on topographic maps, aerial images or field terrain, according to a certain proportion of the relationship, with sand, chess and other materials piled model. Real estate model is the real estate community according to a certain proportion of the model to do out, easy to visit and buy local property community users more intuitive to see the whole picture of the community. Real estate property model is divided into categories in the form of models, according to a certain proportion of their high-fidelity replica out, with ornamental, display, high simulation, portable and collectability features.