810
The resin filament and fiber were supplied separately , before heating and mixing in the printing head .
 material: resin filament; material: fiber; manufacturing process: heating; concept or principle: mixing; machine or equipment: printing head
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:
 material: resin filament; material: fiber; manufacturing process: heating; concept or principle: mixing; machine or equipment: printing head