Beijing Changzheng Mechanical Equipment Manufacture Co.,Ltd (short for Hangzheng Mechanical) is a wholly-owned subsidiary of Changzheng Engineering Co., Ltd (Stock Code: 603698). The company has long been dedicated to the development of special ball valves and control valves for harsh conditions in petrochemical, coal chemical, new energy, and nuclear power industries.
Adhering to the philosophy of providing customers with high-quality and highly reliable products, Hangzheng Mechanical ensures the stable operation of equipment, thereby benefiting customers. Products such as high-temperature high-pressure oxygen shut-off ball valves, oxygen control valves, PDS valves, and high-temperature high-pressure floating ball valves have broken the monopoly of imported brands, achieving domestic production. Thanks to their long-term stable operation over many years, Hangzheng Mechanical has maintained deep cooperation with well-known enterprises both domestically and internationally.
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