Assertion: ballistic missile's stage | /r/MadeOf | graphite epoxy
Facets:
Source sentences:
text: All three stages of the Trident II are made of graphite epoxy, making the missile much lighter.
text: All three stages of the Trident II D-5 are made of graphite epoxy, making the missile much lighter than its predecessor.
text: All three stages of the Trident II are made of graphite epoxy, making the missile much lighter.