Chengxin Chemicals Company   Shijiazhuang Taicang Chemical Technology Co.,Ltd.   Taicang Liyuan Chemical Co.,ltd   taicang liyuan chemical co,.ltd   Qingdao Chengxinhong Trading Co., Ltd   Taicang Yaoshun Trading Co., Ltd.   Taicang Puyuan Chemical Co.,Ltd.   Taicang Xinhu Chemical Co,. Ltd   Taicang Hualian Chemical Industry Co.,Ltd.   Taicang Jinmao Chemical Co., Ltd   TAICANG CITY PESTICIDE FACTORT CO.,LTD   Taicang Yanlin Chemical Plant   Taicang City Jintian Chemical Co., Ltd.   Taicang pharmaceutical factory（Suzhou Huanghe ）   Shanghai chengxin Chemical Co.   Nantong Chengxin amino acid co.ltd   Hebei Chengxin Co., Ltd   Hebei Chengxin Co.,LTD   Hebei Chengxin Co.,Ltd.   Fuxin Chengxin Industry & Trade Co., Ltd