TDZ.TDZ was established in 2012 and is headquartered in Daqing, Heilongjiang Province. It is a high-tech enterprise integrating R&D and production. Since 2015, the company has accumulated 23 invention patents and 60 utility model patents, achieving domestically leading technological standards. Holding multiple international certifications including API Q1 and 11D1, along with five special equipment production licenses, its product portfolio spans diverse sectors such as concrete products, construction machinery, and valves/instrumentation. Core competitiveness is built upon proprietary technologies and adherence to international standards.