... structure, small and exquisite outlooks, various assembling methods with manual control and switch indication.17.Smart shape,perform reliably,brass ... service for the actuator Material of main parts: Actuator: heat-resistant ABSBody: brass or stainless steelBall: brass or stainless ... valve.HVAC and fire works.2.IC card meters,heat energy meters3.Irrigation equipment,drinking water equipment,solar water ...