Various definitions. Typically process industries handle gases, liquid and powders in batch or continuous operations. Examples of process industries are food (ketchup, sauces, soups, frozen peas), brewing, paint manufacture, fine chemicals, oil refining, glass making, large-scale extrusion.
Process industries have differences from industries which manipulate and assemble solids such as automobile manufacture and aerospace, and these differences affect selection of Lean Six Sigma methods and tools to use.
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