On May 29, the 11th China (International ) Precast concrete technology forum was held in Beijing,co-sponsored by Precast Concrete Components Branch of China Concrete and Cement-based Products Association and Beijing Precast Construction Engineering Research Institute Co., Ltd.
On May 29, the 11th China (International ) Precast concrete technology forum was held in Beijing,co-sponsored by Precast Concrete Components Branch of China Concrete and Cement-based Products Association and Beijing Precast Construction Engineering Research Institute Co., Ltd.

