Here I leave you some videos about how plastics are created
http://www.youtube.com/watch?feature=player_detailpage&v=6eCt0VDg-Kc
http://www.youtube.com/watch?feature=player_detailpage&v=T01i_vp2mJE
http://www.youtube.com/watch?feature=player_detailpage&v=8CfL5xl2N1Q
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