Oxidized Rusty Metal Texture
It is a plain iron metal. The surface tells it is highly oxidized leaving only a few shiny areas.

Besides, the surface is covered with rust and dirt.
 
Rusty Metal Treadplate Texture with Cross Pattern
It is a rusty metal plate with typical cross patterns cover the whole surface. The bumpy cross pattern is used to increase the fiction and grip of metal especially when it is being used for flooring.

Dirt can also be found on the texture.
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