| http://www.w3.org/ns/prov#value | - Further, the wall 321 of the ellipsoidal chamber 320 may be reinforced with fibrous material, such as Kevlar???, nylon, fiberglass, ceramic fiber, glass fiber, carbon fiber, steel wire, stainless steel or other metallic (ferrous or nonferrous) or other known high tensile strength material fibers.
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