Floor Spring

1. Suitable for wooden,glass and aluminum etc,all kinds of doors
2. Max opening angle in each direction:130?
3. Controllable Closing Angle:90?25?0?
4. Inside the frame:Height can be adjusted within 4mm, Width can be adjusted within 5mm between left and right length can be adjusted within 12mm
5. Opening or stopping position:90?
6. It operates normally from -30?to 45?
7. Pass the quality test of 500 thousand cycles