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A & S Corporation Patents
A & S Corporation
Tokyo, JP
No. of patents:

Patent Number Title Of Patent Date Issued
5188278 Friction welding method for joining a rim and a disc of a disc wheel and the apparatus therefor February 23, 1993
A friction welding method for joining a rim and a disc of a disc wheel and an apparatus therefore wherein an outside material or a rim and an inside material or a disc, each of which is a component of a disc wheel, are joined together. This friction welding apparatus comprises, typically

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