nDanubearichtraditionandhistoricindustrialcity.Withtherapideconomicdevelopment,becauseoftheGermanenergyshortage,thegovernmentintheenergysavingaspect,therefore(TONITroubleLessValvenofaultyvalves)founded.Tonivalveistoproducehigh-quality,advancedvalves,measurementandcontrolsystemandworld-renownedtransnationalenterprises,dozensofcountriesaroundtheworldhavesubsidiariesandbranches,productsinvolved:petroleum,chemical,electricityuse,metallurgical,pharmaceutical,food,watertreatment,municipalwatersupplyan