 Fujian Aton Advanced Materials S & T Co.,Ltd. |
| Hebei Bosar Pipe Co., Ltd. |
| Yonggao Co.,Ltd |
| Nanya Plastics (Xiamen) Co., Ltd. |
| Hubei Kaile Science and Technology Co., Ltd. |
| Goody Technology Co., Ltd. |
| China Lesso Group Holdings Limited |
| Chengdu Chuanlu Plastic Group Co.,Ltd. |
| Chinaust Group |
| Anhui Guotong Hi-tech Pipes Industry Co., Ltd. |
| Shandong Shenbon Plastics Co., Ltd. |
| Shanghai White Butterfly Pipe Technology Co., Ltd. |
| Rifeng Enterprise Co., Ltd. |
| Shandong Huanqiu Plastic Industry Co,Ltd. |
| Ginde Plastic Pipe Industry Group |
| Fengye Holding Group |
| Zhejiang Zhongcai Pipes S & T Co.,Ltd |
| Ningxia Qinglong Pipes Industry Co., Ltd. |
| Wuhan Kingbull Economic Development Co. Ltd. |
| Zhejiang Weixing New Building Materials Co., Ltd. |
| Hongyue Plastic Group |
| Jun Xing Pipe Industry Group |
| Kangtai Plastic Science & Technology Group Co.,Ltd |
| Shandong Huaxin Plastic Pipe Co., Ltd. |
| Jiangsu Xinghe Group Co., Ltd. |
| Georg Fischer Piping Systems Ltd. Shanghai |
| Hefei Anlo New Building Materials Co., Ltd. |
| Ningbo Fangli Group Co., Ltd. |
| Sichuan Tungtay New Material Technology Co., Ltd. |
| Cangzhou Mingzhu Plastic Co., Ltd. |
| Battenfeld-cincinnati (Foshan) Extrusion Systems |
| Nam Sok Building Material Products(Shenzhen) Co.,L |
| Fujian Zhenyun Plastics Industry Co., Ltd. |
| Hangzhou Boda Plastics S & T Stock Co.,Ltd |
| Hangzhou Shunda Plastics & Rubber Co., Ltd. |
| Jincheng Fenghuang Industry Co., Ltd. |
| Hebei Jingxin Chemical Group Co.,Ltd. |
| Jiangsu Fasten Advanced Pipelines Co., Ltd. |
| Shuangliu PE Factory of Minjiang Water Plant |
| Zhejiang Shuanglin Plastic Machinery Co., Ltd. |
| TianJin Sheng Xiang Plastic Pipe Industry Co., Ltd |
| Changzhou Hippo Plastics Co., Ltd. |
| Jiangsu Jiangte Technology Co., Ltd. |
| Jiangsu Liantong Plastic Technology Co., Ltd. |
| Handan Eton Building Materals Co.,Ltd |
