When we have a lot of specifications, and a lot of products, its hard to find specifications in new product adding. also in product detail view, this specifications are not Categorized..
example for mobile : Appearance specifications such as : Dimensions, color , ... Technical specifications such as : CPU,RAM ,... Network specifications such as : 4G,3G,WiFi,...
http://electrade.ir/sample.png
I think we need specifications in a structure such as hierarchy tables. and we need a relation between specifications and product categories..
in this structure, root nodes are only title for separate conceptual kind of specifications ( such as : Appearance specifications, Technical specifications, ..) and relation with product categories, help us to select, fast and right template to adding new product.