Today's two spotlight superheroes wore silver suits of armor into battle. Meet Victor Stone aka Cyborg from Earth-One, and Tong aka the Iron Man of Earth-Two.
Stone was being breed by his scientific parents into being an intellectual genius, however it was athletics that truly inspired him. Then one day, while visiting his folks' lab, he witnessed an inter-dimensional being pulled through the Stone's equipment which caused his mother to perish and caused Victor to lose over half of his body. Frantically, his father Silas installed cybernetic parts in the lad turning him into Cyborg. He would soon thereafter be recruited into joining the Teen Titans, although he would be a reluctant hero always seeking to return to normal. His robotic components were composed of molybdenum steel, plastics and polymers which gave him superhuman strength and semi-invulnerability, with adaptable parts to his artificial exoskeleton. He came equipped with sonic disruptors, electronic shockers, and body extensions.
As for Tong, he was the assistant of John Zatara, a traveling adventurer with magnificent yet mysterious powers which he would employ on various cases. In several instances, Zatara used his powers of transmutation into turning his partner Tong into various forms. At least once, Tong was transformed into a winged Iron Man. While never officially joining the All-Star Squadron which Zatara had been a member of... doubtless Tong was still an associate in good standing. And it would stand to reason aided the Squadron at least a time or two during World War II. Tong would even resemble another armored hero of the day in Bozo the Robot. After a series of tales alongside Zatara, Tong eventually retired perhaps to return to his unspecified foreign homeland.