The ‘D&H’ villa series is a three-dimensional modular lightweight steel(Low-carbon steel) structural products which is designed by DONGPU Science& Technology Industrial CO.,LTD. The units’ module walls come with full sets of water pipelines and electricity pipelines installed ,and are also the completely decorated, and so on. This product may be combined with different modules to achieve different construction functions. The product also can be combined with some technology, for example ,some energy-saving technology, such as Solar Energy or Wind Energy. Compared to the existing residential forms, it is a product which is ecologically intelligent, energy efficient and architecturally diverse . The Dongpu Science& Technology company’s residential products can be completed according to the needs of different regions，different climatic conditions and local conditions. The product may be customized to be suitable for cold regions, hot regions, mild regions, and regions with hot summers and cold winters.