For door knobs and locks , un’wana na un’wana u na swivilelo swo hlawuleka swo hambana hi swona, naswona leswi hi swi endlaka i ku kurisa swilaveko swa swikumiwa swa muxavi un’wana na un’wana, hikwalaho khwalithi ya swikomba-nkarhi swa hina swa nyangwa na swilotlelo swi amukeriwile kahle hi vaxavi vo tala naswona yi tiphinile hi ndhuma leyinene ematikweni yo tala. Zhongshan Toptek Security Technology Co., Ltd Swikhomo swa tinyangwa na swilotlelo swi na swihlawulekisi swa dizayini & matirhelo yo tirha & nxavo wo phikizana, ku kuma vuxokoxoko byo tala hi swikomba-nkarhi swa nyangwa na swilotlelo , hi kombela u ntshunxeka ku hi tihlanganisa.