function of ground spring1. can be automatically closed under the action of external force、2. closing speed can be adjusted、3. retention function、4. having door hinge action (the ground spring is also called the earth hinge).

 

scope of application

The ground spring is used for frameless glass doors, ordinary doors, fire doors and safety doors. But the fire door is only allowed to use the stay spring.

Ground springs are widely used in office buildings, hotels and other comprehensive large buildings, as well as shops, banks and other public places.

 

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