... meters2.Air-warm valve.HVAC and fire works.3.Water equipment,auto-control watersystem,industrial mini-auto equipment, ... equipment,solar water heaters,washing machines,water heaters,industrial humidifier.6.Solar thermal,under-floor,rain water ... Product/Service (We Sell): electric valve,motorized valve,industrial valve,manual valve,pneumaticvalve/air actuator,automatic valve,actuator,IC card water meter, ...