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Relatively more uniform bronze infiltration was able to be achieved for the parts pre-sintered between 1300 and 1350 °C due to the presence of 3D interconnected open-porous channels .
 bronze, be, pre-sintered, 3D
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:
 bronze, be, pre-sintered, 3D