Wood woolconsists of fine slivers of wood, curled or twisted to form a tangled mass. The slivers are of regular size and thickness and of considerable length (thus differing from ordinary wood shavings of heading 44.01). They are manufactured in this form from logs (of poplars, coniferous wood, etc.) by a special shaving machine. Wood wool is usually presented in pressed bales.
Wood wool remains in this heading if dyed, gummed, etc., or if roughly twisted together or put in the form of sheets between layers of paper. It is used mainly for packing or stuffing purposes. It is also used in the manufacture of agglomerated panels (e.g., certain boards of heading 44.10 or 68.08). Wood flouris a powder obtained by grinding sawdust, shavings or other wood waste or by sifting sawdust. It is used largely as a filler in the plastics industry, for the manufacture of particle board and in the manufacture of linoleum. Wood flour can be distinguished from sawdust of heading 44.01 on the basis of the smaller size and greater regularity of its particles. Similar flour made from shells of coconuts or the like is excluded (heading 14.04).
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