Our technology research and development began with Shenzhen Self-Tightening King Technology Co., Ltd., established in 2007. Over the past fifteen years, we have been committed to the technology research and development, precipitation, and optimization of self-tightening and anti-loosening fasteners, and have cooperated with the National Steel Materials Testing Center and Beijing Institute of Technology. The School of Vehicles and Engineering of the University, the Railway and Urban Rail Transit Research Institute of Tongji University in Shanghai, the School of Materials, Science and Engineering of South China University of Technology, and the School of Mechanical Engineering of Hangzhou University of Dianzi University have established a long-term industry-university-research cooperation relationship to conduct experimental analysis and analysis of the self-tightening principle. Research and devote ourselves to the design, development and manufacturing of fasteners that never loosen, self-tightening wrenches, and self-tightening series products.

In 2019, Sanmen Tongshun Rivet Co., Ltd. acquired the controlling stake of Zi Tight King Company and established Zhejiang Zi Tight King Technology Co., Ltd. With the advancement of the international strategic development goal, Zhejiang Self-Tightening King Technology Co., Ltd. will adhere to the spirit of ingenuity and the brand belief of "professionalism comes from innovation" to provide customers with high-quality Self-Tightening King series products through continuous development and innovation. We have a mission and we dare not let go!

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As an important part of the development of smart transportation in the Guangdong-Hong Kong-Macao Greater Bay Area (Guangzhou), the Guangdong-Hong Kong-Macao Greater Bay Area (Guangzhou) Smart Transportation Industry Expo has always shouldered the responsibility of leading the development of the industry, focusing on building transportation infrastructure, intelligent transportation management, traffic safety, etc. An international platform integrating industry, academia, research and business. Under the guidance of the Guangdong Provincial Department of Transportation and the joint support of more than a hundred associations, societies, and organizations across the country, the exhibition will be held grandly in Area D of the Guangzhou Canton Fair Complex from August 24 to 26, 2023.

At the 2023 annual event, the organizing committee will make every effort to present various information about the transportation industry and create the 2023 Guangdong-Hong Kong-Macao Greater Bay Area Transportation Infrastructure Innovation Forum, Smart Transportation Innovation Forum, Smart Highway Forum, Southeast Asia Smart Transportation (Guangzhou) Innovation Cooperation Summit, etc. More than 30 rich and diverse concurrent exhibition activities and forums will bring you a professional and high-quality exhibition experience.

With its strong resource network and rich hosting experience, the Guangdong-Hong Kong-Macao Greater Bay Area (Guangzhou) Smart Transportation Industry Expo has become a grand event where professionals in the national transportation industry gather regularly. Gathering academicians and experts from all over the transportation industry, covering more than 400 hot topics. Owners accounted for an overwhelming proportion of the audience categories in previous years. More than 20 provincial and municipal transportation departments and bureaus and investment groups across the country communicated and interacted on-site. Central enterprises, state-owned enterprises, well-known leading domestic and foreign participating organizations, and more than 500 group units communicated on-site to promote orders. Transportation authorities, traffic control departments, road administration departments, highway owners, integrated investment and construction companies, traffic engineering companies, road maintenance companies, integrators, dealers, design and research institutes and other relevant personnel actively participated to jointly help my country's transportation High-quality development of safety facilities!