Ngwunye igbe igbe, ugbu a dịkwa oke ọgaranya, akwụkwọ, akpụkpọ anụ, plastik, metal, iko, osisi, seramiiki, anụ ọhịa rattan, eriri eke, ihe ngwakọta na ihe ndị ọzọ na-akwakọba, jikọtara ya na adhesives, mkpuchi, ihe eji ebi akwụkwọ na ihe enyemaka ndị ọzọ.
Nkwakọ osisi- ejiri ihe okike mara, enwere ike iji obere ọgwụgwọ mee ihe.A na-ekewakarị n'ime ụdị abụọ nke softwood na hardwood, dị ka akwụkwọ si ele ihe nchebe gburugburu ebe obibi anya, nyocha nke ihe nkwakọ ngwaahịa osisi adịghị adabara maka mmepụta oke.
Ngwa igwe- malitere 100 afọ gara aga, 1809 ndị French chepụtara nri mkpọ, 1841, British chepụtara agba agba.Nke a kere akụkọ ihe mere eme nke oge a nke nkwakọ ngwaahịa ọla.Ngwunye ígwè n'ihi nhazi mgbagwoju anya, nke mere na ọnụ ahịa ya dị oke elu.Ọnụego eji eme ihe adịchaghị elu.
Nkwakọ ngwaahịa- dị nnọọ nkịtị ná ndụ anyị n'ihi na ọ dị mfe deform, ìhè arọ na ike mgbasawanye.Ya mere, a na-ejikarị ya eme ihe.Otú ọ dị, n'ịkwalite nchebe gburugburu ebe obibi taa, a naghị akwalite nkwakọ ngwaahịa akwụkwọ!
Ngwa iko- A na-eji udidi iko mara nke siri ike na nke na-emebi emebi, nke doro anya ma dị mfe ịhazi!Otú ọ dị, ngwa nke mmebi adịghị mfe!
Nkwakọ ngwaahịa plastik- na resin dị ka isi akụrụngwa, setịpụrụ site na elu okpomọkụ.Ọ bụ ezie na ọ bụ ihe nkwakọ ngwaahịa ọgbara ọhụrụ.Agbanyeghị, ọnụ ọgụgụ ojiji nke ihe nkwakọ ngwaahịa na-abawanye kwa afọ, ma jiri nwayọ dochie igbe akwụkwọ na ụfọdụ mba mepere emepe.