Ayini ama-Valves? Amavaluvu angamadivayisi ayimishini alawula ukugeleza nokucindezela ngaphakathi kwesistimu noma inqubo. Ziyizingxenye ezibalulekile zesistimu yamapayipi edlulisa uketshezi, amagesi, umusi, ama-slurries njll. Izinhlobo ezahlukene zamavalvu ziyatholakala: isango, iglobhu, ipulaki, ibhola, uvemvane, isheke, i-d...
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