Aogong Valve Co., Ltd. is a scientific and technological enterprise specializing in the production of metal hard seal ball valves integrating R & D, manufacturing, sales and service. The company has 8 national patents and 2 national invention patents. It is the drafting unit of national standard for eccentric half ball valve (GB/T 26146-2010), the drafting unit of industrial standard for technical conditions of valves for coal chemical plant (JB/T 12797-2016), the drafting unit of industrial standard for V-type ball valve and the drafting unit of industrial standard for thermal insulation jacket valve. It has CAD, Cam development, design and manufacturing and ERP enterprise resource planning management system, with 60 machining centers, CNC machine tools and metal cutting processing equipment, 30 sets of physical and chemical, nondestructive testing, spectral analysis and valve comprehensive performance testing equipment. The company has passed ts, EU CE, safety production standardization, ISO9001 international quality system certification ISO14001 environmental system and OHSAS18001 occupational health and safety management system certification.