ABMA 21.2 : 1988現行
THRUST NEEDLE ROLLER AND CAGE ASSEMBLIES AND THRUST WASHERS INCH DESIGN
出版：American Bearing Manufacturers Association
專家解讀視頻
THRUST NEEDLE ROLLER AND CAGE ASSEMBLIES AND THRUST WASHERS INCH DESIGN
出版：American Bearing Manufacturers Association
專家解讀視頻
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