Dandong Aolong X-ray Instrument Group Co., Ltd. carries forward more than fifty years of research and development in China's X-ray instrumentation field and comprises four subsidiaries: Shanghai Aolong Xingdi, Dandong Aolong Electronics, Aolong Inspection Services, and Dandong Aolong Zhongke Sensing Technology. The company's manufacturing processes fully comply with the ISO 9001 international quality standard, ISO 14001 environmental management system, and ISO 45001 occupational health and safety management system, and it holds over one hundred patents. It undertakes major national research projects and has been designated by the National Development and Reform Commission as a national demonstration base for the industrialization of high‑tech real‑time X‑ray imaging technologies, making it a leader in China's X-ray instrument manufacturing and application services sectors.