Uloliwe sisixhobo esibalulekileyo esisetyenziswa kuthutho lukaloliwe, kwaye iintlobo zayo kunye nokusetyenziswa kwayo kuyahluka. Iimodeli zikaloliwe eziqhelekileyo ziquka i-45kg/m, 50kg/m, 60kg/m kunye ne-75kg/m. Iindidi ezahlukeneyo zeereyili zine-suitab...
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