Iimveliso ezahlukeneyo ezenziwe ngeeprofayili ze-aluminium yemizi-mveliso zibizwa ngokuba ziimveliso zeprofayili ye-aluminium yeshishini, njengeebhentshi zeprofayili ye-aluminium, iibhanti zokuhambisa, iingcingo zokhuselo lwamashishini, izahlulo zamagumbi angenalo uthuli, izixhobo zokukhusela, iirakhi zeprofayili yealuminium, iirakhi zokugcina iprofayili yealuminium...
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