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Raw materials are materials that have been harvested from the earth. Lumber, metal ores, and grain are all examples of raw materials. Processed materials are materials which have been refined or built by humans from raw materials.Examples would include paper, steel, or glass.rocessed materials are materials which have been refined or built by humans from raw materials.
An example of this is crude oil, which is a raw material and a feedstock used in the production of industrial chemicals, fuels, plastics, and pharmaceutical goods; lumber is a raw material used to produce a variety of products including furniture.atex being collected from a tapped rubber tree. A raw material, also known as a feedstock or most correctly unprocessed material, is a basic material that is used to produce goods, finished products, energy, or intermediate materials which are feedstock for future finished products.