Does anyone know the development process of house collection and delivery .

In North America, integrated housing has been developed for more than 70 years, of which wood structure is the mainstay, but with the development of wood, the United States has increased the promotion of steel structure housing. At present, in the North American market, light steel structure housing is growing at a rate of 30% per year, from the original 200 new light steel structure houses per year to the current annual growth of 2,000 to 3,000 light steel structure houses. Light steel structure housing has become the main force of the integrated housing market.

Integrated housing has been very popular in developed countries such as Europe and the United States, and is known as a wonderful way to replace traditional buildings in the future because of its convenient disassembly, safe and efficient resource regeneration. In accordance with China's idea of taking the road of sustainable development and building an energy-saving society, integrated housing has been listed as China's top support industry and has become an ideal residential product.

In December 2001, Hebei Zhongmei Real Estate Development **** was established, entered the real estate industry, and successfully achieved strategic transformation.

In July 2004, it cooperated with partners to build a 160,000-square-meter humanistic community - Zhongmei Phoenix City, and pioneered the Zhongmei model - innovative commercial housing cooperative construction model and successfully practiced it.

In December 2005, Hengmei Property was established, and Vanke Property Consultant Group was invited to reside in Zhongmei Phoenix, and the "Golden Key" service system was initially formed.

In June 2007, we once again joined hands with a number of enterprises, colleges and universities and other partners to successfully practice the Zhongmei model and build a 1.6 million square meter ** - Zhongmei Modern City.

In July 2009, Beijing Zhongmei Real Estate Development **** was established, marking that Zhongmei entered a new stage of cross-regional and multi-project operation.

In March 2010, it cooperated with a number of enterprises and colleges in Shijiazhuang to build a 1.1 million square meter residential building - Zhongmei City, and practiced and further optimized the Zhongmei model for the third time.

In January 2011, the construction of the original construction project of Zhongmei and PS-CC realized the initial implementation of the Zhongmei model in the capital.

In June 2011, the headquarters of the group settled in Beijing Financial Street, based in the capital, serving the whole country.

In February 2012, it cooperated with a number of partners to build Zhongmei Phoenix Green City, and further carried forward the Zhongmei model in the provincial capital.

In March 2012, the Group continued to optimize its development strategy and actively explore industry-related diversification paths, and its subsidiaries were established one after another.

In April 2012, it established a product and service innovation R&D platform in North America to appreciate the global vision and improve the domestic industrial level.

In July 2012, it obtained the Pangezhuang project in Daxing District, Beijing, with a total construction area of 160,000 square meters.

In December 2012, Zhongmei City and Zhongmei Phoenix Terrace completed the largest centralized housing delivery in the history of Shijiazhuang's real estate industry, and more than 5,000 families moved to new homes.

In March 2013, he donated to the China Welfare Association for the Disabled.

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The history of the development of mobile phones in China.