备有不同规格的转轴可与各种地弹簧配合使用。
The turnable axles of different specification can be used with different floor spring.
备有不同规格的转轴可与各种地弹簧配合使用。
The turnable axes of different specification can be used with different floor spring.
调治 地弹簧三个偏向的螺丝。连结门扇垂直，及上下转动轴心重合。
E. Adjust the screws at three directions. Make them vertical and the upper and lower pivot center coincide with each other.
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