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Laser powder bed fusion , is an additive manufacturing technology that is used in industry for rapid prototyping and manufacturing of aftermarket products , molds and special machine parts .
 Laser powder bed fusion, additive manufacturing, industry, rapid prototyping, manufacturing, molds, machine
Please list all entity words in the text that fit the category. Output format is "word1, 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:
 Laser powder bed fusion, additive manufacturing, industry, rapid prototyping, manufacturing, molds, machine