3514
Differential scanning calorimetry and thermal gravimetric analysis showed that the onset temperature for the reactions was above 350 °C , which is well above the operation temperature of both the filament extruder and the fused deposition printer .
 scanning, temperature, temperature, filament, extruder, fused deposition
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:
 scanning, temperature, temperature, filament, extruder, fused deposition