Who We Are
Established in 2003, Liangzheng is engaged in the research, design, manufacture, sales, and service of valves. Supplier of valve system integration solutions.
The company now owns the Changzhou Gas Valve Production Base, the Binhai General Valve Production Base, and the Tianjin Hydraulic Control Valve Production Base, covering an area of more than 40,000 square meters. After more than 20 years of struggle and development, it now has 36 senior engineers and more than 100 technicians.
“If you want to do a good job, you must first sharpen your tools.” A good person knows this well. Good management, good ideas, and good talent must also have excellent equipment to enable the enterprise to truly have strong production capacity and ensure the excellent quality of products.

Why Choose Us



Production Equipment





Deepen the Development of the Valve Industry
The company has obtained the “TS” Class A certification for the special equipment manufacturing license of the People’s Republic of China. ISO9001 international quality system certification, ISO14001 environmental system certification, OHSAS18011 occupational health and safety management system certification, American Petroleum Institute AP certification, German TÜV fireproof certification, member of China City Gas Association, has accumulated a good reputation in the domestic natural gas valve manufacturing industry. Won the “National Quality Integrity AAAAA Brand Enterprise”, “Jiangsu Province Quality Trustworthy Enterprise”, “Enterprise AAA Credit Rating”, “Changzhou Famous Trademark”, certificates of quality-qualified products, more than 50 invention patents and technological innovation patents, and so on.

