Since its inception in 1994, the shanghai charter has been a firm that provides products and services for the market after the sale of a car. Under the auspices of the shanghai cars private personalisation centre, the 3m specialized car beauty construction centre, and the car trade company ltd., they are engaged in private personalized tailor-made commercial car interior retrofitting, car creative dynamic display vehicle retrofitting, car acoustic retrofitting, car navigation modification and car acoustic navigation system distribution, 3m specialized car beauty construction and distribution of market products after the sale of 3m vehicles. Over the years, the concept of "professional service, good faith and good faith" has gained the consensus and trust of a wide range of clients, choosing products of good quality and good quality, relying on skilled and skilled expertise, and thoughtful after-sales services. As early as 1997, the shanghai car bottle was trained and certified as an authorized construction centre for 3m cars, a priority in the shanghai region. The services included 3m membrane car insulation, 3m car chassis protection against rust, 3m specialized paint care, 3m specialized vehicle air cleaning, 3m rhinoceros coating, etc. The car bore is dedicated to the customer's professional quality of products, comfortable environment, and the process of process standardization, construction specialization and branding of services. At the same time, as an early 3m car dealer in the shanghai region, shanghai motors trading company ltd., which has been working with 3m since 1997, has developed a market for after-sales services, with the concept of "good faith" for decades, and has been the country's top distributors on top of 3m's sales record。