Xiamen Tongchuang Testing Technology Co., Ltd. (TCT) was established in 2008. It is a professional provider of environmental testing equipment research and development, production, manufacturing, measurement and control system application development, and IoT application solutions. TCT has established long-term win-win strategic cooperation relationships with well-known research institutes and enterprises at home and abroad, providing customers with a complete set of scientific system solutions in automotive testing, environmental monitoring, information management, IoT testing, etc. TCT is one of the key research and development enterprises in the world for vehicle emission detection systems such as PEMS, engine direct emission analysis systems, automotive exhaust particle analyzers, portable automotive exhaust analyzers, and smoke meters. Tongchuang actively adopts a research and development system of "industry university research", and currently has deep exchanges and cooperation with key universities such as Shandong University and Nankai University. Its customer network covers the world, and it has also cooperated with excellent enterprises and institutions such as China Automotive Research Center, China Automotive Engineering Research Institute, Volkswagen, Jiangling Ford, Mercedes Benz, General Motors, Renault Jinbei, Dongfeng Motor for more than ten years. At the same time, Tongchuang continues to introduce top foreign high-tech and products, constantly upgrading and replacing products, and providing technical support to various environmental protection bureaus, research institutes, and major testing centers. With first-class technology, excellent quality, and perfect service, it has won the trust of users and occupied the market. Since its establishment, Tongchuang has been committed to the mission of "technology first, environmental protection foremost" with a keen perception of walking at the forefront of the industry and a craftsman spirit of continuous pursuit and excellence. Xiamen Tongchuang will stride forward towards becoming a world-class provider of research and development of testing equipment, integrated development of measurement and control system applications, and comprehensive solutions for IoT applications. We will work together with our partners to create the future.!