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Powder-fed laser additive manufacturing ( LAM ) based on directed energy deposition ( DED ) technology is used to produce S316-L austenitic , and S410-L martensitic stainless steel structures by 3D-printing through a layer-upon-layer fashion .
 manufacturing process: laser additive manufacturing; manufacturing process: LAM; manufacturing process: directed energy deposition; manufacturing process: DED; concept or principle: technology; material: austenitic; material: martensitic stainless steel; manufacturing process: 3D-printing; concept or principle: fashion
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: laser additive manufacturing, LAM, directed energy deposition, DED, technology, austenitic, martensitic stainless steel, 3D-printing, fashion 
Answer:
 manufacturing process: laser additive manufacturing; manufacturing process: LAM; manufacturing process: directed energy deposition; manufacturing process: DED; concept or principle: technology; material: austenitic; material: martensitic stainless steel; manufacturing process: 3D-printing; concept or principle: fashion