A na-ekewa usoro mmepụta baajị ka ọ bụrụ stampụ, nkedo anwụ, nrụgide hydraulic, corrosion, wdg. N'ime ha, stampụ na nkedo anwụ na-adịkarị. Usoro ọgwụgwọ ụcha na usoro agba gụnyere enamel (cloisonné), enamel enamel, agba baking, gluu, mbipụta, wdg. The mater ...
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