ZWZDH.ZWZDH is a high-tech enterprise established in 2005 in Tangshan, Hebei Province, specializing in the R&D, manufacturing, and integration services of industrial flow meters and automation control systems. The company occupies a 30,000-square-meter site and possesses a complete range of production and testing equipment, from wire-cutting machines to various pipe diameter calibration systems. Its primary product lines encompass differential pressure, ultrasonic, electromagnetic, and metal tube rotor flow meters, along with PLC control systems, widely applied in metallurgy, chemical, thermal power, petroleum, and other industries. Leveraging a professional R&D team, the company adheres to independent innovation, committed to delivering precise, reliable flow measurement solutions and attentive service for industrial sites, earning a strong reputation within the industry.