How+can+boxes+be+made?

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Video showing how corrugated boxeans are made - http://www.dailymotion.com/video/x2bsmd_how-its-made-cardboard-boxes_school

PDF Explaining, using text and ilustrations, how corrugated boxes are made - http://www.tappi.org/paperu/all_about_paper/earth_answers/earthanswers_howboxes.pdf