Ukuba ukhangela iimeko zengqekembe — nokuba uqokelela iingqekembe zemali, uthengisa iingqekembe zemali, uqhuba i-mint, okanye uthengisa izinto ezincedisayo—uyayazi imiceli mngeni: iingqekembe ezixabisekileyo ezifuna ukukhuselwa, isibheno esihle sabaqokeleli, izinto eziguquguqukayo (umthi, i-aluminiyam, iplastiki, iphepha), sisithethe...
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