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In particular , laser beam powder bed fusion ( PBF-LB ) is identified as a key process for manufacture of metallic AM components .
 concept or principle: laser beam; manufacturing process: bed fusion; material: as; concept or principle: process; concept or principle: manufacture; manufacturing process: metallic AM; machine or equipment: components
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: laser beam; manufacturing process: bed fusion; material: as; concept or principle: process; concept or principle: manufacture; manufacturing process: metallic AM; machine or equipment: components