The serial production of the wiring that will be mounted on machines or work tools is one of the main sectors for EMZ. The production of customized items and the testing on each single wiring, allow to guarantee a functionality that continues unchanged over time even despite demanding and stressful working conditions. The rooted know-how in this sector, with the using of equipment for the processing of special large section cables and the experience on the application of non-common connectors, allows to have the right wiring for each machine even on series production.