1. AD ERA Yonggao Co., Ltd. Founded in 1993, it is one of the top ten brands of pipes, a standard-setting unit for the plastic pipe industry, and a listed company. It is a subsidiary of AD Plastic Industry Group.

2. Poly Pipeline (Aikang Enterprise Group (Shanghai) Co., Ltd.. Participating unit in the compilation of plastic pipe standards, one of the top ten brands of water pipes, environmental label certification, and Shanghai famous brand of high-tech enterprises.

3. MIERGU Jinsu Enterprise Group (Shanghai) Co., Ltd. is a famous pipe brand in Shanghai and a well-known domestic manufacturer of high-quality home improvement pipe products.

4. Sorbonne Pipe ( Shanghai Pirsa Pipe Industry Co., Ltd. is a designated special product for China's North and South Pole, one of China's top ten quality benchmark enterprise pipe brands, Shanghai famous brand products, and Shanghai famous trademark.

5. Pirsa ABM Jiangsu Pirsa Pipe Industry Co., Ltd. Co., Ltd. Jiangsu Famous Brands Top Ten Brands in Jiangsu Pipe Industry Member of China Plastic Pipe Professional Committee President Unit of Suzhou Wujiang Pipe Industry Association

6. Junxing Pipe Industry (Tianjin Junxing Pipe Industry Group Co., Ltd. Company. A high-tech enterprise specializing in the development/production of new plastic pipes/composite reinforced pipes and other products.

7. Longsheng Pipe Industry LS Shanghai Long. Sheng Industrial Co., Ltd. Shanghai famous brand. Building decoration materials/bathroom heating equipment comprehensive group home water and electricity system expert industry standard drafting unit

8. JOMUGY Shite (Suzhou Jiumu Pipe Technology Co., Ltd. Pipe Ten. A big brand, famous for its excellent quality in the pipe industry, a high-tech enterprise specializing in the research and manufacturing of plastic pipe products

9. Weixing Vasen Weixing Group Co., Ltd. owns advanced PPR. Dao Technology, an earlier/larger plastic pipe company in China