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Priority to JP11292487UpriorityCriticalpatent/JPS6418534U/ja
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Closed forging method, forging production system using the method, forging die used in the method and system, and preform or yoke produced by the method and system
Closed forging method, forging production system using the method, forging die used in the method and system, and preform or yoke produced by the method and system