Base material for making e.g. wheels or cylinders, obtained by cutting ring out of used tire between its tread and steel cables

摘要

The area of a used tire between its tread and the steel cables used to improve the bonding of the tire to the rim are into rings, which are then roughened and coated with a layer of unvulcanized rubber. The rings are stacked to the desired height and then subjected to a vulcanization step.