I-Valve iyingxenye yokulawula kusistimu yokuthutha uketshezi, enemisebenzi efana nokuncishiswa, ukulungisa, ukuphambukisa, ukuvimbela i-counter current, i-voltage elawulayo, ukuphambukisa noma ukucindezela kokuchichima.Kunezinhlobo eziningi zamavalvu, futhi zingahlukaniswa zibe: 1. Trippi...
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