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This paper presents a concept of solidifying small quantities of metal powders in an additive manner , using localized microwave heating ( LMH ) .
 material: metal powders; material: additive; enabling technology: microwave; manufacturing process: heating
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: metal powders, additive, microwave, heating 
Answer:
 material: metal powders; material: additive; enabling technology: microwave; manufacturing process: heating