■材質:主體&扣座-不銹鋼 , 插銷-鐵? ■Material:Body-Stainless?Steel?, PIN-Steel ■表面處理:主體&扣座-振動研磨 , 插銷-鍍鎳 ■S.Tr:Body-Vibration Grinding , Pin-Nickel plating
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