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p-median models are applied to identify the optimal location for metal AM hubs in the U.S. that would serve as near-net manufacturers to supply processed build plates to HT facilities who will ship it to machine shops after HT .
 metal AM, as, processed, build plates, 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:
 metal AM, as, processed, build plates, machine