Sonico parabolic leaf springs comes with heat treatment line with automatic swinging for fast cooling and camber stability. Thickness up to 60mm. For more information please visit us : https://www.sonicoleafsprings.com/parabolic-leaf-springs.html . #ParabolicLeafSpring #ParabolicLeafSpringManufacturer #ParabolicLeafSpringExporter #ParabolicLeafSpringManufacturerIndia #ParabolicLeafSpringIndia #Sonicoleafsprings .