Has he not reason to fear the images on those plates of hard metal?

Iron is power in a world with no hard metals.

Duncan reached out and pressed his hand against hard metal.

She just stared right back, her eyes full up of hard metal.

He reached out a hand and touched the cool, hard metal.

And broke half a dozen teeth on her hard metal.

Many late pins were made of brass, a hard metal.

The channel played a variety of hard metal from yesterday and today.

He felt his fingers relaxing from the gun's hard metal and that was answer enough.

But suspicion is a hard metal which does not easily yield to fire.