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The material extrusion additive manufacturing process , i.e. , fused deposition modeling ( FDM ) , as opposed to traditional subtractive manufacturing , offers a superior way of manufacturing tooling components in terms of great design flexibility , rapid tooling development , material requirement reduction and significant cost savings .
 material extrusion additive manufacturing, fused deposition modeling, FDM, as, traditional subtractive manufacturing, manufacturing, components, design flexibility, rapid tooling, material, reduction
Please list all entity words in the text that fit the category. Output format is "word1, 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 extrusion additive manufacturing, fused deposition modeling, FDM, as, traditional subtractive manufacturing, manufacturing, components, design flexibility, rapid tooling, material, reduction