Improving the quality: quality is not only the strict natural quality which includes feasibility, durability, security and economics of products, but also consists of its social nature like subjective feeling, the gap between prospection and ability for satisfying a certain need, etc. The social nature of quality is significant to the differentiation of products.
Beautify the packing: As packing can directly improve the visual interest and stir up the consuming desires of consumers, so it can form product differences to promote sales.