In {HEAD ~ a preferred embodiment} of {TAIL ~ the invention}, the mold cavity 404 is formed by a bottom mold 406, a bottom riser block 408, and a cull block 410 
of
In { HEAD ~ a preferred embodiment } of { TAIL ~ the invention } , the mold cavity 404 is formed by a bottom mold 406 , a bottom riser block 408 , and a cull block 410
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