Ключевые слова: absorber, abstract, abstracts, bouncy, coil, coiled, coils, energy, engineering, flexibility, flexible, industrial, large, loop, loops, metal, red, science, scientific, shock, spiral, spirals, spring, springs, springy, sprung, steel, suspension, swirl, swirls, tension, twist, twisting, twisty, woodchip, woodchips,