所有的金屬運動部件會有很多金屬肖. 這些就像研磨砂磨損著部件,特別對塑料部件破壞很大
所有跟帖:
• 塑料隻有被金屬粉末摩擦了才會破壞不是? -MoonRiverMe- ♂ (29 bytes) () 07/26/2016 postreply 06:29:09
• 不是"才會" -老生長談- ♂ (0 bytes) () 07/26/2016 postreply 07:23:46
• 塑料隻有被金屬粉末摩擦了才會破壞不是? -MoonRiverMe- ♂ (29 bytes) () 07/26/2016 postreply 06:29:09
• 不是"才會" -老生長談- ♂ (0 bytes) () 07/26/2016 postreply 07:23:46
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