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https://www.engadget.com/2017/11/16/g...3d-metal-printer-makes-aircraft-parts
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https://www.zdnet.fr/actualites/impre...-pieces-en-metal-explose-39876001.htm
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http://www.theage.com.au/technology/s...pe-local-industry-20120827-24wox.html
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http://www.greenetvert.fr/2017/09/22/...s-cause-degats-a-lenvironnement/85380
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