| http://www.w3.org/ns/prov#value | - Unless specifically otherwise disclosed or taught, materials for making components of the present invention are selected from appropriate materials such as metal, metallic alloys, fibers, plastics and the like, and appropriatemanufacturing or production methods including casting, extruding, molding and machining may be used.Any references to front and back, right and left, top and bottom and upper
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