德国SED

Seat valves are used in the chemical process industry, in parts of the 
pharmaceutical industry, in biotechnology, and in food and beverage. These 
valves are suited for shutting off and regulating liquid and gaseous media. 
Moreover, seat valves can be used with steam and technical media, such as 
CIP-liquids etc.
SED电磁阀：SED导向电磁阀，SED岛阀
The control of pneumatic process actuators is an important component of process 
automation. In this sector, SED offers a complete portfolio。