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Ukuhlaziywa Kwezinkinga Zokungqubuzana Kwe-Coefficient Nokulwa Nezithiyo Ekuvinjweni Okungenazo Izixazululo
I-lamination engenaso isinyibilikisi isivuthiwe emakethe, ikakhulukazi ngenxa yemizamo yamabhizinisi okupakisha kanye nabaphakeli bezinto zokwakha, ikakhulukazi ubuchwepheshe be-lamination ye-aluminium emsulwa...Funda kabanzi
