Shenyang Branch of Yingkou Hangsheng Science and Technology Industrial Co., Ltd. (SAC), founded on March 11, 1985, is a state-owned enterprise directly under AVIC Shenyang Aircraft Design and Research Institute. SAC is located in Shenyang City, China's industrial equipment manufacturing base. With the favorable conditions of technology, talents, professional equipment and material technology of the Institute of Fighter Aircraft, SAC Powder took the lead in the successful development of fluidized bed airflow mill and horizontal turbine classifier in China. QLM-IIQLM-IV fluidized bed airflow mill was rated as national new product by the Ministry of Science and Technology and other departments. After more than 30 years of development, SAC Powder has become a well-known powder equipment enterprise. As a professional enterprise in the development of crusher, classifier and pneumatic conveying, SAC Powder has always adhered to the concept of aviation quality, reliability and excellence to serve customers. Through the military enterprise quality certification and ISO9001 certification, with self-import and export rights, for many years by the municipal government as "contract, keep promises" unit. The products and services of SAC powder are well received by thousands of customers at home and abroad, and are exported to all parts of the world in batches all the year round. It has been widely used in new materials, non-mineral, electronic materials, ceramics, chemical industry, metal powder, toner, rare earth, grinding and polishing materials, medicine and other dozens of industries.