The company was founded in 1898 by two distinguished technical engineers (Celestine Rozenn, Napoleon Gracian) from the Ecole Polytechnique. At that time, CRNG  to repair the internal combustion engine, replace the internal combustion engine parts and carry out the early mechanical parts design, they completed the invention of the internal combustion engine service life and intake air cleanliness purifier through continuous improvement and experiment, greatly extended the life of the internal combustion engine, 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 over the Seine River in France, at this time CRNG will focus on industrial pollution control, developed a world-renowned micron filtration high-efficiency air filtration products, It is widely used in various fields of industrial production, civil construction, odor control and pollution control.

It was also during that period that our 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.

With the advent of the era of global economic integration, CRNG filtration products have gone out of Europe and have been widely used and praised in important markets around the world. With the arrival of 2020, CRNG Industrial Technology Co., Ltd. will adhere to continuous innovation, focus on industrial new materials, focus on environmental filtration new materials, from different angles to develop more valuable products to realize the human desire for clean, fresh, clear air, water environment dream.