Yizheng Xiang Heng polyester Technology Co., Ltd.   Qingdao Jieruida Biological Technology Co., Ltd   Ruida Engineering Rubber and Plastics Co. Ltd.   Gansu Hairuida Chemical Technology Co., Ltd,   XUCHANG RUIDA BIOLOGY&TECHNOLOGY CO.,LTD   Beijing Ruida Chemical Co.,Ltd   Xuchang Ruida Biotechnology Co.,Ltd.   TianjinZhongxiang Ruida Chemicals Co.Ltd   JIANGSU YIZHENG TIANNING CHEMICAL INDUSTRY CO.,LTD.   YIZHENG EAST CHEMICAL CO.,LTD   Xuzhou Yizhengyuan Cahemicals Product Co.,Ltd   Xuzhou Yizhengyuan Chemical Technology Co.,Ltd   Taiyuan Tengruida Chemical Co.,Ltd   Taiyuan Tengruida Chemical Co.,Ltd    Tianjin yiiruida chemicals CO., LTD   TIANJIN YIRUIDA CHEMICAL CO.,LTD   Tianjin Yiruida Chemical Co.,Ltd   Xuzhou Yizhengyuan Chemical Technology Co., ltd   Xuzhou Yizhengyuan Chemical Technology Co., ltd   Taiyuan Tengruida Chemical Co.,Ltd