Bombrini-Parodi-Delfino (better known as BPD), was a chemical company founded in 1912 by Giovanni Bombrini and Leopoldo Parodi-Delfino to produce gunpowder and explosives.
Around its location in Colleferro (south of Rome) soon grew a small town attracting manpower from the nearby farms.
After World War I, BPD expanded its activities on fertilizers and cement at nearby Segni (Società Calce e Cementi).
In 1952, on behalf of the Aeronautica Militare, BPD patented a solid fuel based on nitro-glycerine and cellulose nitrate, the first step in developing experimental missiles on an industrial scale.
The Aeronautica_Militare also contracted BPD to develop a meteorological missile, called the 160-70, employing two propulsion systems.