Qingdao Zhongwangtong Construction Development Co., Ltd. (ZWT) is a high-tech enterprise specializing in a full range of power and communication transmission towers and steel structure products. As a professional original manufacturing factory with complete qualifications and leading technology in the industry, we provide high-quality, customized products and supporting solutions for the global infrastructure field.
We have a comprehensive manufacturing system equipped with advanced production and testing equipment such as CNC angle steel combined production lines and CNC flame cutting machines. With independently controllable production processes, we ensure the conventional order lead time within 30 days and can quickly respond to customers' urgent and personalized needs. In terms of technology and quality, we hold core qualifications including the 500kV Transmission Line Tower Production License and Quality Certificates for Polygonal Steel Pipe Poles and Steel Pipe Towers below 220kV. We have passed three international system certifications of ISO9001, ISO14001 and ISO45001, owned 9 national utility model patents, and been awarded authoritative recognitions such as Innovative Small and Medium-sized Enterprise and Specialized, Sophisticated, Unique and New Small and Medium-sized Enterprise. We implement the ERP management system internally to realize the standardization of the whole production and quality process.
Our main products include communication towers, power transmission towers, steel pipe poles, solar mounting systems, etc., with specifications ranging from more than 10 meters to hundreds of meters, meeting the one-stop procurement needs of customers. All products adopt hot-dip galvanizing anti-corrosion technology with a service life of more than 30 years, and the modular design makes installation more convenient and efficient. Relying on strong customized R&D capabilities, we can adjust product parameters and designs according to customer needs to adapt to climatic and geological conditions in different regions.
At present, our products have been exported to many countries in Australia, Africa, Latin America, Southeast Asia and other regions. Verified by practical projects, the products feature stable and reliable performance. Adhering to the creed of "Gather the efforts of all, create brilliant achievements for everyone", we take innovation as the core and quality as the foundation. We are willing to establish long-term and stable cooperative relations with customers all over the world and jointly promote the development of global infrastructure.