Sonico parabolic leaf spring comes with heat treatment line with automatic swinging for fast cooling and camber stability. Thickness up to 60mm. Width up to 140mm.For more information about Parabolic Leaf Spring please visit us : www.sonicoleafsprings.com/parabolic-leaf-springs.html . #Parabolicleafspring #ParabolicleafspringManufacturer #ParabolicleafspringExporter #ParabolicleafspringManufacturerIndia #Sonicoleafsprings .