... limit and machinery limit design,accurate position,avoid gear with switch.3. Multi-angle assembling,easy to install.4 ... : brass or stainless steelStem: brass or stainless steelSituable for :1.IC card meters,heat energy meters2.Air-warm valve.HVAC ... /Service (We Sell): electric valve,motorized valve,industrial valve,manual valve,pneumaticvalve/air actuator,automatic valve,actuator,IC card water meter, ...