With the acceleration of industrialization and urbanization, the construction industry also developed rapidly. The accompanying construction waste is increasing, and the amount of construction waste in China is more than 1/3 of the total urban garbage.

Technological innovation is the core of strategy and cooperation innovation is the only way. Xi Jinping stressed that "the implementation of innovation-driven development strategy determines the future destiny of the Chinese nation.

Dec.3, the 2013 Shanghai international 3D printing technology and future peak forum and 3D printing technology & rapid prototyping exhibition was warmly held at the Shanghai international conference center. Professors have given speeches and opinions on the field of 3D printing, including Pro.Lu, Academician of Chinese academy of engineering, Xi 'an Jiaotong university and China academy of engineering, Graham Tomans, chairman of the UK additive manufacturing alliance, Pro.Yan Yongnian, Tsinghua university.