It's AAAAA. According to public information, the company is a national AAAAA-level enterprise and a high-tech enterprise that develops and manufactures chemical machinery, chemical equipment and systems. At present, the company has eight main business sectors, including chemical equipment, environmental protection equipment, coal chemical equipment, machine tool equipment, water treatment equipment, desulfurization equipment, precision molding equipment and heat treatment equipment. In addition, the company also specializes in the maintenance, installation and maintenance services of industrial mechanical and electrical equipment. China Hexi Chemical Machinery Co., Ltd. is an important enterprise in China chemical machinery industry, headquartered in Hexi Autonomous Region.