TZQT.TZQT was established in 2016 and is headquartered in Hangzhou, Zhejiang. As a high-tech enterprise, it specializes in the R&D and manufacturing of industrial valves. The company holds ISO three-system certifications, TS pressure pipeline permits, and international functional safety SIL3 certification, and has participated in formulating industry standards for self-operated pressure regulating valves. Its product portfolio encompasses over 20 types of industrial valves, including self-operated, electric, and pneumatic control valves, ball valves, butterfly valves, and breather valves. These products are widely applied across ten major sectors such as petroleum, chemical, metallurgy, and energy. Core offerings include self-operated control valves and temperature/pressure reduction units. Through technological expertise and product quality, TZQT has become a key supplier to enterprises like PetroChina and Sinopec.