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The multi-stage forging process requires several expensive dies and leads to components with a high material oversize .
 manufacturing process: forging; machine or equipment: dies; machine or equipment: components; material: material
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: forging; machine or equipment: dies; machine or equipment: components; material: material