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Anodization is a mature electrochemical process capable of producing protective layers on the metal surface with adjustable surface microstructure and crystal structure .
 manufacturing process: Anodization; manufacturing process: electrochemical process; application: protective layers; material: metal; concept or principle: surface microstructure; machanical property: crystal structure
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: Anodization; manufacturing process: electrochemical process; application: protective layers; material: metal; concept or principle: surface microstructure; machanical property: crystal structure