724
Special care should be taken with regard to the possible negative effect on mechanical properties after corrosion-based surface treatment .
 material: be; concept or principle: mechanical properties; manufacturing process: surface treatment
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:
 material: be; concept or principle: mechanical properties; manufacturing process: surface treatment