Check123 (@check123com) tweeted at 9:01 PM on Wed, Jun 17, 2015:
How are 3D printers actually made?
http://t.co/beV1Z1wAg1
#3dprinting http://t.co/8lAZQ1jmqK
(https://twitter.com/check123com/status/611337804522627072?s=09)
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