- It was also created out of an extremely durable metal ( possibly secondary adamantium ) which rendered it almost immune to physical damage.
- Later on, Hammerhead's entire skull was replaced with or reinforced with some type of nearly unbreakable metal ( possibly vibranium or secondary adamantium ).
- A later Ultron model developed hive-mind technology, allowing it to animate and control hundreds of other Ultron bodies simultaneously, although only the'prime'Ultron was composed of adamantium while others were made of steel or secondary adamantium due to the lack of resources to give all the Ultrons adamantium bodies.
- It's difficult to find secondary adamantium in a sentence. 用secondary adamantium造句挺難的