"3M" is not a car brand. Engaged in the decoration business of automobile parts such as automobile glass explosion-proof film. 3M is a trademark of Minnesota Mining and Manufacturing Company. 3M was founded in 1902 and is headquartered in St. Paul, Minnesota, USA. It is a world-renowned multinational company with diversified products. It mainly develops, manufactures and operates its own products. In the history of nearly a century, it has continuously innovated and developed more than 60,000 products, covering industry, chemicals, electronics, electricity, communications, transportation, automobiles, aviation, medical care, security, construction, cultural, educational and office, commerce, household consumer goods, etc.