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Mechanical and corrosion properties of L-PBF specimens were superior to wrought 420 stainless steel .
 application: Mechanical; machanical property: corrosion properties; manufacturing process: L-PBF; concept or principle: wrought; material: 420 stainless steel
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: Mechanical, corrosion properties, L-PBF, wrought, 420 stainless steel 
Answer:
 application: Mechanical; machanical property: corrosion properties; manufacturing process: L-PBF; concept or principle: wrought; material: 420 stainless steel