On the basis of continuous understanding of consumer demand, usually companies will take an extension of an extension in the industry as well as product quality grade, while we take an extension of the method at the same time, in order not to damage the original brand image, it should be Note that t

On the basis of the informed consumer demand, usually enterprises will adopt the method is an extension on the industry, as well as on the product quality grade extension of the method of extension at the same time we need to take at the same time, in order not to damage the brand image, you should