| http://www.w3.org/ns/prov#value | - Valve member 126 c is generally cylindrical-shaped with the cylinder-shaped valve member 126 c comprised of disk member 128 c formed of compliant material, such as rubbers or thermoplastic elastomers or silicone as outlined previously, and stiffening element 130 c which is desirably integrally formed with disk member 128 c or otherwise secured in permanent or semi-permanent fashion with disk membe
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