We, Beijing Zhonghanghua Safety Valve Sales Co., Ltd established in 1998 which is the sales entity especially for safety valves and specialty valve designed and manufacutred by Beijijng Aerospace Propulsion Institute Pressure Relief Branch. Based on the company \'s philosophy of \'People oriented \' and forcusing on providing best-in-class service and products to customers, the company already developed as one of the most important supplier for safety valves and specialty valves. By our continuing development, our products not only has been widely used in the most of domestic industry projects but also have been accepted and intalled to the industry projects by customers from USA, Germany, Canada and so on with excellent performace. Our parent company Beijing Aerospace Propulsion Institute (CASC) was founded by 1958, which was the first research unit in China and involved in liquid propellant rocket engine development. Since 1984, CASC started to apply aerospace techniques to the industrial products development. The products have been successful developed such as thermal engineering equipments, special pumps, special valves, petrochemical equipments, measurement and control systems, enviroment protection systems for petrochemical and enviroment protecion industries. Most of them filled the domestic gap and enter the international market successfully. Product ：Safety Valves；Pilot Operated Safety Valves;Pressure Relief Valve；Change Over Safety Valve；Pressure / Vacuum Valve；Gas Blanket Pressure / Vacuum Valve；Emergency Pressure Vaccum Valve；Automatic Recirgulation Valve.We have obtained the certification fo ISO9001, and ISO14001, ISO18001, approved vendor of SINOPEC, CNPC, CNOOC.