fragment of a metal bridge with an uneven surface. durable alloy with anti-slip relief. a few crayons of white pebbles

abstract metal solder cast iron tin steel bar graphite ore casting melting chrome welding plate gold corrosion ceramite metalplastic titanite bakelite oxide nitride forging tungsten crucible cermet alloying alloy bridge pimple stone hatch smelting remelting copper aluminum background pattern texture surface metallic textured sheet wallpaper gray stainless industrial grunge brushed fragment uneven durable antislip relief few crayons white pebbles