ADT is a GUIDO company.Worldwide GUIDO stands for innovation, quality and reliability. Today the group manufactures over 1.2 million high pressure fuel injection lines for diesel, gasoline and hydrogen engines every month, along with over 350 kilometres of high pressure fuel injection tubing, over 2.4 million tube nuts and over 2,000 double walled fuel injection pipes for boats. Together we are one of the international market leaders in these segments and are represented with branches and offices all over the world.