| http://www.w3.org/ns/prov#value | - While the J-shaped hangers can be secured to a wall, pole or other surface rigidly and by multiple attaching devices, such as screws, normally mounted through holes in the ???top??? of the ???J???, it can be particularly advantageous to attach the J-shaped hangers by a single screw (or other attaching device) each, and not quite tightly; this permits the J-shaped hangers to rotate, which is helpfu
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