CRNG Industrial Technology was founded in 1898, at the end of the French Industrial Revolution. Due to the influx of a large number of steam locomotives in Britain, the industrial revolution that swept the entire Eurasian continent instead of people by machines was triggered. During this special period, two outstanding scientific and technological engineers (Celestine Rozenn and Napoleon Gracian) from the Paris Polytechnic University founded the CRNG Industrial Technology Company. Naturally born on a farm on the outskirts of Paris. The original company, only eight people, they through continuous improvement and experiments to complete the service life of the internal combustion engine and air intake cleaning purifier invention, greatly extended the life of the internal combustion engine,CRNG company at that time to repair the internal combustion engine, replace the internal combustion engine parts and early mechanical parts design, in order to achieve the high efficiency of the machine as the main business.

With the continuous advancement of the industrial revolution, all kinds of thermal power generation, cement, metallurgy and other fossil fuel-based factories have sprung up, all along the Seine River in France, and all kinds of pollution have followed. At this time, the Kronge company turned its research center to industrial pollution control, and developed the world-renowned micron filtration high-efficiency air filtration products. It is widely used in various fields of industrial production and pollution control. It was also during that period that CRNG's industrial filter cartridges began to gain a reputation in Europe and went global. As a global strategic partner of the French company Alstom, our cooperation in air pollution control technology makes Europe's sky bluer and water cleaner. We have a long-standing relationship with AIRBUS, a friendship of nearly 65 years, and we are an important supplier of heavy weapons to the Raoul Industrial Group in France.