Zhengmao Valve Co., Ltd. was established in 1992 in Yubei Town, Yongjia County, Wenzhou City, Zhejiang Province. It is committed to the research and development and manufacture of high-quality industrial valves. The registered capital of the company is 100 million yuan. It is now a national high-tech enterprise and a “contract-conserved contract” in Zhejiang Province. Re-credit "AAA-level enterprises, Zhejiang credit private enterprises. The company now has three major valve production bases in Dongpu Industrial Zone, Zhejiang Lishui Industrial Zone and Tangtou Industrial Zone, with a total area of 78,600 square meters. It has more than 400 employees and 54 middle and senior titles. Now it has formed a complete industrial chain consisting of valve R&D design, valve body precision casting, product machine production, all-round inspection and precision marketing.

The company's leading products include gate valves, butterfly valves, ball valves, globe valves, check valves, discharge valves, filters, special valves, etc. There are more than 60 series and thousands of models. The main materials of the valves are WCB, WC6, CF8 and CF3. There are hundreds of materials such as duplex stainless steel, pure titanium, pure nickel and Monel. The products cover high, medium and low pressure valves. The products serve the domestic and international petrochemical, pharmaceutical, metallurgy, electric power, petroleum, water supply and drainage, gas and other industries. Customers all over the world, using quality to create value for customers, and won the city of Wenzhou Famous brand products, Wenzhou famous trademarks and other honors.