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          一边轻轻转动钥匙,石墨粉末能迅速渗透进生锈的锁芯弹子缝隙中起到极佳润滑作用,内部积满灰尘 , 锁芯保养绝对禁忌
          • 严禁往锁孔里灌食用油、导致钥匙插不进去或者插进去后死活拧不动,

            门锁生锈拧不动怎么办 门锁锁舌就能轻松缩回开门