200-81

Agent Zero's combat knife and bullets
The outer skin of some of Alkhema's robotic bodies
Battlestar's shield
Bullseye's spinal column and some strips coating several of his bones
Certain iterations of Captain America's shield
Constrictor's original wrist-mounted, prehensile metal coils
Cyber's claws and skin
(one particular set of) Doctor Octopus' arms
The outer layer of Citizen V's rapier
Lady Deathstrike's skeleton and talons
One of Mister Fantastic's labs for extremely dangerous experiments
Moon Knight's crescent blades
A unique suit of armor once used by the villain Stilt-Man
The outer skin of TESS-One
One of several layers of containment at the superhuman incarceration facility known as the Vault
An outer coating on the Swordsman's blades
A special brand of bullet in the Iron Man suit's ballistic weapons
Bullets used by Underworld
X-23's claws
Doom 2099 suit
Bucky Barnes' Captain America suit
A statue of the Hulk, sculpted by Alicia Masters
Hammerhead's head i
Hawkeye arrow heads

WHICH IS THE KEY COMPONENT FOR THE GIVEN MATERIALS??????

ANSWER:ADAMANTIUM