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Welding with sparks by Process fluxed cored arc welding , Welding by Welder Thailand
Black lava texture background
A hologram singer. Holographic projection of a man with a microphone. Flickering energy flux of particles. Scientific music design.
A pair of red alnico horseshoe magnets with black tacks showing magnetism on black background
Vector illustration of magnetic force with lines of magnetic flux in physics. Opposite poles attract and like poles repel. The law of magnets on white background.

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