kvv, kvvp, kvvrp, kvvp2, kvv23, kvv32
Izintambo zokulawula i-Copper core ze-PVC ezifakwe ngaphakathi futhi ezifakwe ngaphakathi zifakwa endlini. Imisele yamakhebuli, amapayipi nezinye izikhathi ezingaguquki ezidinga ukuvikelwa ikakhulukazi zifanele izindawo ezinokuphazamiseka okuphezulu kwesiginali.
Amamodeli asetshenziswa kakhulu: kvv, kvvp, kvvrp, kvvp2, kvv23, kvv32
