Kwiiglasi ezininzi zizinto zemihla ngemihla eziyimfuneko, nokuba ziiglasi ezichazwe ngugqirha, iiglasi zelanga, okanye iiglasi eziluhlaza. Ngokuhamba kwexesha, uthuli, igrisi, kunye neminwe ngokungaphephekiyo ziqokelelana kumphezulu weendondo. Oku kungcola kubonakala kuncinci, ukuba kushiywe kungajongwanga, akukho ...
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