皮帶是多槽的摩擦下一些粉末,小輪也是開槽的內有不少粉末可能牙刷清理,大輪是光滑的塑料上有黑槽印跡。因停機多日聞不到啥味。
皮帶是多槽的摩擦下一些粉末,小輪也是開槽的內有不少粉末可能牙刷清理,大輪是光滑的塑料上有黑槽印跡。因停機多日聞不到啥味。
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