7194
SLS 3D printing using the self-made healable PBP-PU powders was successfully realized .
 manufacturing process: SLS; manufacturing process: 3D printing; material: powders
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: SLS, 3D printing, powders 
Answer:
 manufacturing process: SLS; manufacturing process: 3D printing; material: powders