1, Sanhua Holding Group Co., Ltd. (trademark: Sanhua)

Sanhua Holding Group Co., Ltd. was established in 1984, located in Xinchang County, Zhejiang Province, China. Is a large private enterprise integrating scientific research, production, management and service.

2. Zhuzhou South Valve Co., Ltd. (trademark: South)

Zhuzhou South Valve Co., Ltd. was established in May 1996, and completed the shareholding system reform in February 2003. It is composed of Hunan Science and Technology Department, Provincial Finance Department,

3. Zhejiang Chaoda Valve Co., Ltd. (trademark: Chaoda)

Chaoda was founded in 1984, with a registered capital of136.88 million yuan, a factory building area of 32566m2, more than 480 sets of machine tools and equipment, and 465 employees. High-tech enterprises jointly recognized by the Provincial State Taxation Bureau and the Provincial Local Taxation Bureau.

4.CNNC Sufa Technology Industry Co., Ltd. (trademark: CNNC Sufa)

CNNC Sufa Technology Industry Co., Ltd. is a listed company established by Suzhou Valve Factory of nuclear industry with high-quality assets and social funds. Listed companies have inherited the main business of CNNC Suzhou Valve Factory, including brand, goodwill, quality assurance system, technology, manufacturing and customer management. At present, it is the enterprise with the highest annual sales and export volume in the valve industry in China, and it is a high-tech enterprise in Jiangsu Province.

5. Kaiweixi Valve Group Co., Ltd. (trademark: Kaiweixi)

Shanghai Kaiweixi Valve Group (formerly Shanghai Kaiweixi Valve Co., Ltd.) is a special valve supplier with harsh working conditions such as long-distance pipelines and petrochemical process devices.

6. Sichuan Zigong High Pressure Valve Co., Ltd. (trademark: Zigong)

Sichuan Zigong High Pressure Valve Co., Ltd. was established in 1958, and moved to China as a "third-line construction" enterprise. Initially, its main task was to support the military industry.

7. Guangdong Mingzhu Group Co., Ltd. (trademark: Mingzhu)

Guangdong Pearl Group Co., Ltd. is a A-share listed company in China. Securities abbreviation: Guangdong Pearl.

8. China Liangjing Group Valve Co., Ltd. (trademark: Liangjing)

China Liangjing Group Valve Co., Ltd. was established in 1985, and the group was established in 1998. At the end of 2000, it was upgraded to a regional-free group with the approval of the State Administration for Industry and Commerce. In 2002, it successfully acquired Nanjing Shen Lan Pump Group Co., Ltd.

9. Gansu Hongfeng Machinery Co., Ltd. (trademark: Hongfeng)

Gansu Hongfeng machinery co., ltd was established by the former state-owned company on 1992. O factory is a new enterprise, with strong scientific research and technical force, advanced technology and equipment, complete quality inspection means and modern management system.

10, Shanghai Lianggong Valve Factory (trademark: Lianggong)

Shanghai Lianggong Valve Factory, founded in 1946, is a key unit of the former Ministry of Machinery to manufacture high and medium pressure valves and a national second-class enterprise. With more than 60 years of design experience, it is a professional manufacturer of valves and valve electric devices.