About Oxygen Gas Producing Plant Manufacturer Company Italy, Indian air separation plant manufacturers design and develop their products in technical collaboration with ING. L. & A. BOSCHI of Italy. The Italian company is popular all over the world for manufacturing and supply technologically advanced plants. On the other hand, they also offer spare parts at competitive pricing. There are a number of CE approved companies meaning they manufacture high quality plants that can be exported in the USA and European market. Nowadays, the manufacturers and suppliers have started fabricating latest products. The oxygen generators are available in a plethora of latest features to choose from.