Iiprofayili zetsimbi, njengoko igama libonisa, ziyintsimbi enemilo ethile yejometri, eyenziwe ngentsimbi ngokuqengqeleka, isiseko, ukuphosa kunye nezinye iinkqubo. Ukuze kuhlangatyezwane neemfuno ezahlukeneyo, kuye kwenziwa iimilo icandelo ezahlukeneyo ezifana I-steel, H steel, Ang...
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