the 12th china international exhibition for building materials, building system, construction machinery & architecture date:may 10-13, 2007 address: beijing exhibition center china international exhibition for building materials,building system,construction machinery & architecture,abbrebiat ¡°china building¡±.ccpitbm registed and founded the synthetical building materials exhibition in 1992.over more than ten years developed,support by lots of famous companies of building materials.the ¡°china building¡±is developed the largestest building materials exhibition in north china.it enjoy very high fame in the building materals. contact person£ºhongbing zhou sir e-mail: ccpitbm@163.com tel: +86 10 89660868, +86 (0 )13366770675