Ms.Yawei Zeng, CTO of CSTB (CENTRE SCIENTIFIQUE ET TECHNIQUE DU BATIMENT IN FRANCE) in China region visited our company on March 6,2008.The main purpose of this visit was to make discussion about collaboration of both side and NF certification.Both of us exchanged the point of view about the further cooperation with a long-term relationship.In addition, Ms.Yawei Zeng had a seminar for training the engineer of ZeChang about the latest European directive.