China North Industries Group Corp, commonly known as Norinco and the country's biggest maker of land armaments, has designed and built many world-class weapons for the Chinese military and foreign users. The State-owned defense conglomerate released a video clip on Friday to mark its rapid growth over the past 40 years of China's reform and opening-up, and also to promote its products and technologies for the coming 12th China International Aviation and Aerospace Exhibition, the largest arms exhibition in Asia.