Post-industrial waste: Wastes or residues that are produced from manufacturing process. A very good example is bagasse which is residues from sugar cane production process. They will be dumped to the landfill or become another pile of wastes if not used for making paper.
The followings are the two frequently seen symbols, is there any difference between them?

The above symbols have very different meanings. The three arrows inside a circle (left) denote recycled paper; the three arrows without the circle (right) denotes recyclable, i.e. it's up to you to make sure it gets recycled.
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