7201
In this study , nano-scale powders are granulated and printed by a special 3D printing method called ‘ solvent jetting on granulated feedstock containing binder ’ to achieve an interconnected macropore structure with high strength .
 nano-scale powders, 3D printing, solvent jetting, feedstock, binder, macropore structure, strength
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:
 nano-scale powders, 3D printing, solvent jetting, feedstock, binder, macropore structure, strength