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A round robin test was conducted as follows : a series of standard test procedures ( part sizes and shapes and test protocols ) were applied – using one microCT system – to identical parts produced on a variety of metal additive manufacturing systems ( specifically laser powder bed fusion systems ) .
 process characterization: round robin test; material: as; concept or principle: standard; concept or principle: protocols; process characterization: microCT; manufacturing process: metal additive manufacturing; machine or equipment: laser powder bed fusion systems
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: round robin test, as, standard, protocols, microCT, metal additive manufacturing, laser powder bed fusion systems 
Answer:
 process characterization: round robin test; material: as; concept or principle: standard; concept or principle: protocols; process characterization: microCT; manufacturing process: metal additive manufacturing; machine or equipment: laser powder bed fusion systems