5552
Powders that have been developed for powder metallurgy are readily available for use in various AM processes such as selected laser melting ( SLM ) powder bed .
 Powders, powder metallurgy, AM processes, as, laser, SLM, powder bed
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:
 Powders, powder metallurgy, AM processes, as, laser, SLM, powder bed