Kaifeng Huarui Chemical Material Co., Ltd   kaifeng jiancheng imp and exp co.,ltd.   Tianjin Kaifeng Chemical Co.,Ltd   Kaifeng Huarui Chemical Materail CO.,LTD   Huanghua Kaifeng Chemical Co.Ltd   CHINA KAIFENG CHEMICAL CO.,LTD.   TianJin KaiFengshun Chemical Cor. Ltd   kaifeng jiancheng trade co.,ltd   Huanghua Kaifeng Chemical Co.,Ltd   Tianjin Kaifengshun Chemicals Co.,Ltd.   Max Planck Institute   Max Planck Institute of Biophysics   tianjin kaifengshun chemicals co.ltd   Tianjin Kaifengshun Chemical Co.,Ltd   Tianjin Kaifeng Chemical Co., Ltd.   Tianjin KaiFeng Chemical Co.,Ltd.   Tianjin Kaifengde Import And Export Co., Ltd.   Kaifeng Huaxing Chemical Factory (the former name is Kaifeng No.3 Chemical Plant)   kaifeng Pharmaceutical Co., Ltd (hangzhou)   kaifeng pharmaceutical co ltd