Kaifeng Dong Li High Pressure Valve Casting Co., Ltd. was founded in 1996. The company is located in Kaifeng Economic and Technological Development Zone and covers an area of 66, 000 square meters. It has 365 workers including 56 High and middle engineers and technicians. The company is the professional business which producing valves steelcasting and valve products. The company has annual production capacity of 6, 000 tons of steel castings. It is the strongest professional casting enterprise. The products are widely used in electric power, petroleum, chemical, steel and coal industries. Main production equipment: 5T medium frequency furnace, 3T medium frequency furnace, 2.5T medium frequency furnace, sodium silicate sand and the introduction of German technology of resin sand 20T / H has a box shape line, 10T/H shot-blasting machine, 2 sets of 30 tons of heating treatment furnace, model making and excellent mechanical processing equipment.