1. Osisi siri ike osisi: gụnyere ma ọnweghị oke na oak, pine, ukpa, wdg, eji eme tebụl, oche, akwa akwa, wdg. Ogwe ihe eji eme ihe: gụnyere ma ọ bụghị nanị na mbadamba njupụta, particleboards, plywood, wdg, ọtụtụ mgbe. eji eme mgbidi, ala, wdg. Osisi mejupụtara: dị ka multi-layer siri ike wo ...
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