The products of our factory have already passed ISO9001 Certificate of Quality Management  Certification which issued by  China import  and exports goods quality authentication centre. The products have  exported to America,Japan,Germany,Saudi Arabia,Syria,Malaysia,kingdom of the Sudan,etc. Administrative body of SHUANGYI as Follows  Jinan Office Qingdao Office Tianjin Office Beijing Office Shijiazhuang Office Taiyuan Office Dalian Office  Chongqing Office  Kunming Office Lanzhou Office  Zhengzhou Office Luoyang Office Hefei Office  Guangzhou Office Nanjing Office Changchun Office  Shanghai Office Guilin Office  Guiyang Office  Lasa Office Chengdu Office  Xi'ning Office Shenyang Office Yinchuan Office  Xi'an Office Changsha Office Nanchang Office Fuzhou Office Hangzhou Office Ha'erbin Office Ningbo Office Haikao Office Wulumuqi Office  Wuhan Office  Huhehaote Office Hongkong Office