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Wang investigated selective laser melting of stainless steel 316L with low porosity and high build rates by employing fast scanning speeds to fabricate high-density stainless steel 316L parts .
 manufacturing process: selective laser melting; material: stainless steel; machanical property: porosity; process characterization: build rates; process parameter: scanning speeds; manufacturing process: fabricate; 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 melting; material: stainless steel; machanical property: porosity; process characterization: build rates; process parameter: scanning speeds; manufacturing process: fabricate; material: stainless steel