1.Item: garage door torsion springs
3.Used for sectional garage door only
4.Smooth work to lift the panels of garage door, garage door balance system
5.the springs can be electric treatment; galvanized;painted
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Garage door springs generally with 1-3/4'' spring fittings, 2'' spring fittings; 2-5/8'' spring fittings.
A torsion spring is a mechanical part that works with elasticity. It is usually made of spring steel. Used to control the movement of the machine, to mitigate shock or vibration, to store energy, to measure the amount of force, etc.
Springs production machine