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Abrasive Fluidized Bed ( AFB ) can therefore be considered a potential easy-to-automate , low cost , low time consuming and sustainable finishing technology for metal parts obtained through additive manufacturing .
 material: Abrasive; machine or equipment: Bed; material: be; concept or principle: sustainable; manufacturing process: finishing; material: metal; manufacturing process: additive manufacturing
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: Abrasive, Bed, be, sustainable, finishing, metal, additive manufacturing 
Answer:
 material: Abrasive; machine or equipment: Bed; material: be; concept or principle: sustainable; manufacturing process: finishing; material: metal; manufacturing process: additive manufacturing