The beijing gymnasium checking old vehicle operating company ltd. Was established on 15 april 2005 as an approved pilot second-hand car operation. China's network of genuine testing of second-hand car chains is organized in the form of a chain of operations, with the concept of "good professional services" as a competitive advantage based on network size, combining the acquisition of second-hand vehicles, sales, maintenance and maintenance of equipment, quality improvement/increase, customer services, etc., and integrating modern vehicle marketing techniques such as new and old replacements, car credit, car auctions, car leasing, etc. Many carmates prefer to buy used cars, mainly because of the focus on value for money, which is relatively cheap, but also because it has a strong advantage in preservation. There is also a cross-level experience with the same budget. The "five unified" principles of hms are harmonized business concepts, resource management, technical standards, servic...