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This paper presents an overview of selective laser sintering and selective laser melting process of stainless steel .
 manufacturing process: selective laser sintering; manufacturing process: selective laser melting process; material: stainless steel
Please list all entity words in the text that fit the category.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} 
Answer:
 manufacturing process: selective laser sintering; manufacturing process: selective laser melting process; material: stainless steel