The product line is the concept to define a single company or brand range of products. In our case, we have only products not services. So we can identify quickly that they are the Product line. Also, they belong to the same industry and the same sector. Thus, we can also understand they belong to the same company. Because as you may know companies choose almost only one industry. When they pick more than one and diversify themselves and become conglomerates it is more difficult to identify them without the brand logo and characteristics.
