 In 1873, de Bange became Director of the "Atelier-de-précision" in the Central Depot in Paris (Paris arsenal's precision workshop), in order to redesign French light and heavy artillery.Between 1877 and 1881, de Bange developed several artillery pieces, such as the De Bange 90 mm cannon (field artillery, 1877), the De Bange 80 mm cannon (mountain artillery, 1878), the De Bange 120 mm L cannon (siege artillery, 1878), De Bange 155 mm L cannon (siege artillery, 1877), De Bange 155 mm C howitzer (siege artillery, 1881), as well as mortars for siege warfare, such as the 1880 De Bange 220 mm mortar, 1885 De Bange 270 mm and coastal batteries such as the De Bange 240 mm and De Bange 270 mm.Several of these weapons were used during the colonial wars of the end of the 19th century, during the First World War and also sometimes during the Second World War.