Nihon Trading Company manufactures Double Torsion Spring. Nihon Trading Company also offers various types of metal mould springs and manufactures various types of indent components. The Double Torsion Springs are used in car, industrial machine, brake, absorber, steering, door hinge, transmission, agricultural machine and heavy equipment. The Double Torsion Springs are available in wire diameter ranging from 0.3mm to 12 mm. These Double Torsion Springs have simple design.