3385
Additionally , the density of printed and sintered Ti-6Al-4V parts could be increased up to 91 % of the theoretical density of Ti-6Al-4V by increasing the sintering temperature up to 1340 °C .
 machanical property: density; manufacturing process: sintered; material: be; concept or principle: theoretical; machanical property: density; material: Ti-6Al-4V; manufacturing process: sintering
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: density, sintered, be, theoretical, density, Ti-6Al-4V, sintering 
Answer:
 machanical property: density; manufacturing process: sintered; material: be; concept or principle: theoretical; machanical property: density; material: Ti-6Al-4V; manufacturing process: sintering