Different Functional aspects of products in a clean race is mostly used in a marketing campaign to reduce the price, rather than the other way, so is the look and design.
The different types of products in the field of Functional with little competition makes the most of the marketing promotions to lower prices than other methods. A minor in terms of looks and design.
The difference of products in the Functional is low, make competition mainly used in the ส่งเสริมการตลาด discount than other methods. Followed by the appearance and design services.