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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.
Sustainable materials are materials used throughout our consumer and industrial economy that can be produced in required volumes without depleting non-renewable resources and without disrupting the established steady-state equilibrium of the environment and key natural resource systems.