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Dorma floor spring price

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Detailed construction method of dorma floor spring slotting:
The first step is to determine the position of the slot: first take out the main body of the floor spring and place it approximately at the pre-determined installation position. At this time, take a plumb line and place the vertical line from the center of the top shaft of the floor spring, and then move the floor.

The position of the spring is such that the center of the plumb body is placed exactly at the center mark of the flat shaft of the floor spring. At the same time, pay attention to the level of the floor spring and the verticality of the front, back, left, and right directions, and then trace the outline of the floor spring body.