Assertion: rotor | /r/HasProperty | manufactured
Facets:
value: from grey iron
type: OTHER
value: usually
type: DEGREE
Source sentences:
text: The outer disc ring or rotor usually is manufactured from grey iron but in special applications can be from steel.
text: Most rotors are manufactured from a Pearlitic Grey Cast Iron and this means that the normal benefits of deep cryopgenic treatment - which is the removal of residual austenite just aren't appropriate.