在流体管道系统中，阀门是控制元件。其主要作用是隔离设备和管道系统、调节流量、防止回流、调节 和排泄压力。可用于控制空气、水、蒸汽、各种腐蚀性介质、泥浆、油品、液态金属和放射性介质等各种类 型流体的流动。东晟密封生产的:系列阀门管道密封圈产品，已经大批量出口欧美、中东市场，获得了广大高 端客户的信赖！

        In a fluid piping system, valve is a control element. Its main role is to isolate equipment and piping, regulate flow, prevent backflow, regulate and drain pressure. It can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. DSH Seals production, series valve pipe seal products, has been exported to Europe, the United States, the Middle East market in large quantities, and has won reputation of the majority of high-end customers.