Paper mills

paper mills - mills (factories) that produce paper from wood pulp.
paper products - materials such as paper and cardboard, produced from trees.
particulate - of or relating to minute discrete particles; a particulate substance.

High Grade Paper: relatively valuable paper such as computer printout, white ledger, and tab cards. Also used to refer to industrial trimmings at paper mills that are recycled.

See also: Runoff, Water, Durable, Transportation, Toxic