MOLD FOR RESIN-COATED STEEL BALL

PROBLEM TO BE SOLVED: To provide a mold with the capability of uniformly forming the wall thickness of cushioning outer shell upon forming a resin-coated steel ball having the entire surface of a steel ball to be core material coated with a cushioning outer shell such as urethane rubber. SOLUTION: T...

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1. Verfasser: OHIRA HIDETO
Format: Patent
Sprache:eng
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