Jiangsu Shenyuan group is a large-scale production enterprise consortium integrating smelting, hot rolling, machining, flaw detection and physical and chemical testing. The group is the second largest and largest domestic diesel engine valve steel manufacturer in the world. It is the main drafting unit of 15 national standards, commercial standards and group standards, including gb/t12773-2008 standards for steel and alloy bars for internal combustion engine air valves, and has 133 authorized patents, Among them, there are 5 invention patents. The group has an annual output of 200000 tons of fine-quality special steel and hot rolling processing 200000 tons, cold processing 50000 tons of production capacity. Six production enterprises and 2 e-commerce companies, the group has a total assets of more than 2 billion yuan, with more than 1500 employees, covering an area of more than 1000 mu and a total building area of more than 200000 square meters.......