Chengdu Datong Road and Bridge Machinery Co., Ltd. was established in 1999, with a registered capital of 100 million yuan and an area of over 120 acres. The production workshop and ancillary facilities have a building area of 36000 square meters. The company has over 300 registered employees, including 87 management and engineering technicians. It has a professional technical team that has been engaged in the development of bridge components for a long time, and has hired well-known bridge component experts at home and abroad as long-term consultants for the company. The company has complete production equipment and testing equipment, and its products have taken the lead in obtaining ISO9001 quality management system certification and UKAS certification among peers. The company has extensive exchanges with leading foreign industry enterprises and is committed to promoting and applying internationally leading products to the Chinese market. At present, we have exclusive agency authorization for products from TECHSTAR in the United States, RPM in Belgium, and ASL in the United Kingdom in China. We have exported a large number of expansion joints to the United Kingdom, Europe, and the Middle East for 12 consecutive years, with a total of over 200000 linear meters. Adhering to the business philosophy of "integrity-based and customer-centric", we strive to become the most competitive and excellent enterprise in the industry through management innovation, technological innovation