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Wire-based directed energy deposition additive manufacturing techniques ( AM ) permit the rapid production of large-scale structural components which are not currently possible using the more common powder bed fusion ( PBF ) AM methods .
 manufacturing process: directed energy deposition additive manufacturing; manufacturing process: AM; manufacturing process: production; concept or principle: structural components; manufacturing process: powder bed fusion; manufacturing process: PBF; manufacturing process: AM
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:
 manufacturing process: directed energy deposition additive manufacturing; manufacturing process: AM; manufacturing process: production; concept or principle: structural components; manufacturing process: powder bed fusion; manufacturing process: PBF; manufacturing process: AM