In order to promote the progress and development of testing technology of building materials (including structural, decorative and more special materials; organic and inorganic materials; metal and non-metallic materials, etc.) in China, the Committee of Building Material Testing Technology of the Chinese Architectural Society and the Chinese Society of Civil Engineering Professional Committee of Non-destructive Testing Technology of Construction Engineering jointly held the 4th National Conference on building material testing technology in Shenzhen, Guangdong Province, from November 3 to 7, 2017.  Limecho was invited to participate in the exhibition with Limecho-MRI-D2, the first generation of desktop magnetic resonance imaging analyzer.