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Friction stir processing ( FSP ) is combined with additive manufacturing ( AM ) with selective laser melting to locally enhance the material properties of a metallic part .
 concept or principle: Friction; manufacturing process: additive manufacturing; manufacturing process: AM; manufacturing process: selective laser melting; concept or principle: material properties; machine or equipment: metallic part
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 concept or principle: Friction; manufacturing process: additive manufacturing; manufacturing process: AM; manufacturing process: selective laser melting; concept or principle: material properties; machine or equipment: metallic part