VdS, a comapany  of the German Insurance Association (Gesamtverband der Deutschen Versicherungswirtschaft e.V., GDV),is structured into four operative divisions: Fire protection, Security, Training & Information and the VdS Publishing House. Furthermore, VdS has been state-approved to issue the CE Mark under CE0786.VdS is member of the European Fire and Security Group (EFSG).

We Zechang Company got VdS authorization agency on March 10,2008. Hereby is the certification.