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In resume , further developments of AM technology are expected to give a significant contribution to bring production costs down , improve manufactured materials properties and render the production processes more efficient and competitive .
 manufacturing process: AM technology; concept or principle: production costs; concept or principle: manufactured; concept or principle: properties; manufacturing process: production; concept or principle: processes
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: AM technology; concept or principle: production costs; concept or principle: manufactured; concept or principle: properties; manufacturing process: production; concept or principle: processes