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Taking advantage of an extended design and manufacturing space for composites , the technology of fused filament fabrication ( FFF ) of continuous fibre-reinforced thermoplastics shows great potential for the production of the next generation of lightweight structural parts .
 design, manufacturing, composites, technology, fused filament fabrication, FFF, thermoplastics, production, lightweight
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:
 design, manufacturing, composites, technology, fused filament fabrication, FFF, thermoplastics, production, lightweight