The innovation regards a safety union which prevents accidental insertions of petrol into the tanks of vehicles feeded with diesel oil. Such union is characterized by the fact that its construction previews an entrance hole, and an exit hole delimited from...

The innovation regards a safety union with an opening cursor which prevents accidental insertions of petrol in tanks of vehicles feeded with diesel oil. Such union is characterized by the fact that its construction previews an entrance hole, an opening cur...