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SLS is capable of creating unique , functional parts with little waste and no tooling by using a high-powered laser to selectively melt powdered polymer into desired shapes .
 SLS, tooling, laser, melt, polymer
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:
 SLS, tooling, laser, melt, polymer