Hi this is a documentary video about piston. They are placed in the engine, in cylinder and they make the engine work. They move up and down and press the gas and air and make the mixture aggregate and help the explosion happen and consequently help the drive. They are made from aluminum rods. Aluminum is an ideal metal because it is slight weight and can be cut very well. Then another machines cut aluminum rod into slug for the next step to be heated and pressed. The excess aluminum will recycle in the factory. Each slug is a 7 centimeters for each piece.
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Tags: How, does, it, made? Document, documentary, show, video, clip, show, discover, discovery, discoveries, channel, piston, pistons, pistones, machine, engine, car, automobile, pestone, pestones, cylinder, cylinders, aluminum, metal, melt, fusion, rod, rods, slug, slugs.