I-COVNA, umenzi wevalvu onamava angama-20 eminyaka okhethekileyo kwiivalvu zemoto, iivalvu ze-pneumatic actuator, iivalvu ze-solenoid, iivalvu zeglowubhu, iivalvu zesango, njl njl. Iqinisekiswe yi-ISO9001:2008.UMay uphawule inguqu enkulu kwi-COVNA.Safudukela kumzi-mveliso omtsha, omkhulu, ophangaleleyo, ngakumbi...
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