Assertion: commutator | /r/HasProperty | formed
Facets:
value: by integrating an insulating resin portion
type: MANNER
Source sentences:
text: 18, the commutator 113 is formed by integrating an insulating resin portion 114 and an annular portion 115 composed of copper by insertion molding, then cutting a plurality of spaces 116 longitudinally in the outer surface of the annular portion 115.