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Uhlu Lokuphakathi: I-Tinplate Ephindwe kabili Embonini. Izakhiwo ze-Double Reduced Tinplate 4. Izicelo ze-Double Reduced Tinplate ku-Building Materials 4.1 Roofing and Cladding 4.2 Ngaphakathi Nezingaphandle Zodonga ezingaphandle 4.3 Izingxenye Zokwakheka 4.4