WENZHOU YIXING IMPORT AND EXPORT TRADING CO.,LTD. Was established in 2011, specializing in the manufacturing and export of automotive parts and accessories.Core products: Electronic fuel injection systems and automotive A/C compressors. These products cater to both domestic and international markets, are compatible with a wide range of vehicle models, and are marketed under the proprietary brand "Tetrad."

The company possesses an international perspective and actively expands into overseas markets, with products being exported to countries and regions such as the United States, Europe, middle East, and Southeast Asia. 

Tetrad places strong emphasis on technological innovation and product development, maintaining a professional R&D team and a comprehensive quality management system.

Adhering to the philosophy of "integrity in business and quality-oriented, " Tetrad is committed to providing the highest quality products and services. Looking ahead, the company will continue to follow an innovation-driven development strategy to enhance its core competitiveness and market share, striving to become one of the leading global suppliers of automotive components.