Double Cylinder Floor Spring Hinge Iron Casting Material With Hold Open Function

Non Handed Double Cylinder Floor Spring Hinge Without Or With Hold Open Function Cam Action FS-311 Function Description Floor Spring is one kind of device which could make door leaf close automatically and it should be installed under the door leaf Product Information Product name: Floor Spring Item number: FS-311 Material: Iron Casting Color: PSS OR SSS Speed control: Two Speed Maximum door width: ≤ 850 mm Applicable bearing weight: ≤ 70 kg Maximum opening angle: 90° or 105°