1, product. Product refers to anything that can be provided to the market, used and consumed by people, and can meet people's needs, including tangible goods, intangible services, organizations, ideas or their combinations. Generally speaking, products can be divided into three levels, namely, core products, formal products and extended products. Core products refer to the direct benefits and utility provided by the whole product to buyers; Regular products refer to the physical appearance of products in the market, including product quality, characteristics, modeling, trademarks, packaging, etc. Extended products refer to a series of additional benefits provided by the whole product to customers, including the benefits given to consumers in the fields of transportation, installation, maintenance and security.

2. trademarks. Trademark is a legal term, which is adopted by producers and operators in their production, manufacturing, processing, selection or distribution of goods or services. In order to distinguish the source of goods or services and have obvious characteristics, it is generally composed of words, graphics or their combinations. A trademark approved for registration by the state is a "registered trademark" and is protected by law. Trademark registrants enjoy the exclusive right to use trademarks.

3. Well-known brands. The most popular understanding of famous brands is well-known brands. The word "famous brand" appeared before the concept of brand, which is the product of the specific environment in China.