1, Zhejiang Dayuan Pump Industry Co., Ltd., founded in 1990, is a famous brand, high-tech enterprise and industry standard drafting unit in Zhejiang Province, specializing in the research, development, manufacture and sales of electric pumps, solar pumps, non-negative pressure, constant pressure, frequency conversion and intelligent water supply equipment in various fields such as agriculture, household, engineering, construction, chemical industry and shipbuilding.

2. Glenford Company of Denmark, Glenford Pump Industry (Shanghai) Co., Ltd., a well-known pump brand, 1945 was established in Denmark. Is a global pump manufacturer, one of the well-known enterprises in the global pump industry, a leader in the field of water technology, and one of the most important pump product manufacturers in the world.

3. Bao Lei brand started in 2007 and belongs to Zhejiang Bao Lei Electromechanical Co., Ltd., which is recognized as a well-known brand in the pump industry. Since its listing, its products have won the love and recognition of consumers with excellent service and good quality.

4. CLP Environmental Protection, located in Nanjing, is the first environmental protection listed company in Nanjing. The main business is water affairs, solid hazardous waste, industrial water treatment, urban sewage and environmental treatment.

5. Bi Shuiyuan mentioned the sewage treatment industry and its brand of sewage treatment equipment. Compared with the name Bi Shuiyuan, everyone will be familiar with it. Founded on 200 1, it is a well-known listed company founded by high flyers who returned from studying abroad. R&D and manufacturing strength are super strong. It has reached the international level in R&D and production of "membrane" technology, and it has great influence.