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Contrarily to most of the other extrusion freeform fabrication methods , in FEF , the organic binder content is only 2vol % and the solids loading of the paste can be higher than 50 vol % .
 manufacturing process: extrusion; manufacturing process: fabrication; material: binder; material: be
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: 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:
 manufacturing process: extrusion; manufacturing process: fabrication; material: binder; material: be