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The role of volumetric energy density on the microstructural evolution , texture and mechanical properties of 304L stainless steel parts additively manufactured via selective laser melting process is investigated .
 process parameter: energy density; concept or principle: microstructural evolution; engineering feature: texture; concept or principle: mechanical properties; material: stainless steel; manufacturing process: additively manufactured; manufacturing process: selective laser melting process
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: energy density, microstructural evolution, texture, mechanical properties, stainless steel, additively manufactured, selective laser melting process 
Answer:
 process parameter: energy density; concept or principle: microstructural evolution; engineering feature: texture; concept or principle: mechanical properties; material: stainless steel; manufacturing process: additively manufactured; manufacturing process: selective laser melting process