Profile: The Spring & Elevator Factory is a manufacturer, exporter and supplier of industrial springs, bolts and fasteners. We provide extension springs, compression springs, spiral, tiny spring, wire-forms & pressing, torsion springs, wire form springs and special springs. Our products include wedge socket bolt, forged eye bolt, thimble, industrial washer, split pin, hex nuts and rope clips. Rectangular section springs are manufactured using raw materials such as nickel, brass, and many other materials. Our springs are specially designed to provide torsion. This design offers reduced force, but is also friction-free when correctly installed. A power spring is a spring for which the force it exerts over its range of motion is a constant. Generally power springs are constructed as a rolled ribbon of spring steel such that the spring is relaxed when it is fully rolled up. As it is unrolled, the restoring force comes primarily from the portion of the ribbon near the roll.