SISMA machines for the automatic production of Figaro and Nonna chains enable the creation of double-execution spirals, allowing various combinations of short and long links, as well as the adjustment of torsion and chain interlinking parameters. The Figaro chain is composed of twisted, flattened links of varying sizes and shapes. It typically consists of one to five shorter links alternating with a longer link, creating a captivating repeating pattern along the entire length of the chain.