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This paper aims to study the mechanical properties of mixed isotropic carbon fiber 3D printed composites and further investigates the influence of hot press on the [ 0°/45°/90° ] 2 fiber angles composite with varying temperature , pressure and time .
 mechanical properties, isotropic carbon fiber, 3D printed, investigates, press, fiber, composite, temperature, pressure
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:
 mechanical properties, isotropic carbon fiber, 3D printed, investigates, press, fiber, composite, temperature, pressure