Plywood, nnua a wɔde yɛ nneɛma titiriw no di dwuma titiriw wɔ wiase nyinaa adansi, dan mu nneɛma, ne nneɛma a wɔde kyekyere nneɛma mu. Ne nhyehyɛe soronko a wɔde laminated ayɛ no ma ahoɔden soronko, ɛyɛ den, na ɛtra hɔ kyɛ, na ɛma ɛyɛ ade a wɔpɛ wɔ nneɛma pii mu. Saa asɛm yi bɛhwehwɛ sɛnea plywood yɛ ne sɛnea wɔde di dwuma no mu kɔ akyiri.
Plywood no fã titiriw no yɛ nnua a ɛyɛ tratraa a wɔde ntama a wɔde nkata so a wɔde ntama afrafra mu pii. Mpɛn pii no, wɔde ntama a ɛyɛ nwonwa na ɛyɛ plywood, na wɔde nnua a ɛbɛn ho no aburow no gyina hɔ ma wɔn ho wɔn ho. Saa cross-lamination nhyehyeɛ yi ma board no bending ahoɔden ne dimensional stability tu mpɔn kɛseɛ. Sɛ nhwɛsoɔ no, mprɛnsa-ply boards a wɔtaa de di dwuma no yɛ veneer a ɛwɔ ntoatoasoɔ mmiɛnsa, berɛ a anum-ply boards ne seven-ply boards fata ma dwumadie a ɛhia ahoɔden a ɛkorɔn. Ɛnyɛ sɛ saa nhyehyɛe yi brɛ nnua abɔde mu sintɔ te sɛ nhama ne mpaapaemu ase nko, na mmom ɛkyekyɛ nhyɛso pɛpɛɛpɛ bere a wɔde adesoa ahyɛ mu no, na esiw mpɔtam hɔ deformation ano.
Wɔ nneɛma a wɔyɛ mu no, plywood a wɔyɛ no hwɛ nsu a ɛwɔ veneer biara mu ne gluu a wɔde gu so no so denneennen na ama wɔahwɛ ahu sɛ ade a etwa to no bɛyɛ adwuma bere nyinaa. Nneɛma a wɔtaa de nkata so ne urea-formaldehyde resin, phenol-formaldehyde resin, ne melamine resin. Nnuru ahorow a wɔde nkata so no ma nsu a ɛko tia ne nneɛma a atwa yɛn ho ahyia no yɛ adwuma a egu ahorow, na edi ahiade ahorow ho dwuma fi dan mu nneɛma a wɔde siesie so kosi abɔnten adansi so. Sɛ nhwɛso no, abɔnten plywood taa de phenol-formaldehyde resin adhesive a nsu ntumi nkɔ mu kɛse no di dwuma de gyina bere tenten-di dwuma wɔ mmeae a ɛhɔ yɛ nwini ano.
Plywood wɔ nneɛma ahorow pii a wɔde di dwuma. Wɔ adansi mu no, wɔde yɛ fam, ɔfasu ho ntama, ɔdan atifi, ne nsusuwso nhyehyɛe, baabi a n’ahoɔden kɛse ne nea emu yɛ hare no ma ɛyɛ ɔdan a eye sen biara. Wɔ dan mu nneɛma a wɔyɛ mu no, wɔtaa de plywood di dwuma sɛ ade a wɔde gyina nkuku, pon so, ne apon ano nnua so esiane sɛ ɛyɛ petee kɛse na ɛko tia sɛ ɛbɛsakra nti. Wɔde plywood nso di dwuma kɛse wɔ nneɛma a wɔde kyekyere nneɛma, akwantu, ne nsaanodwuma mu.
Esiane sɛ nneɛma a atwa yɛn ho ahyia ho nimdeɛ renya nkɔanim nti, plywood a ɛbɛkɔ so atra hɔ daa no nso atwetwe adwene kɛse. Wɔn a wɔyɛ nneɛma pii de nnua a efi kwae a enyin ntɛmntɛm-mu ne nneɛma a wɔde nkata nneɛma a atwa yɛn ho ahyia so di dwuma de tew nkɛntɛnso a enya wɔ kwae mu nneɛma so no so. Daakye, ɛnam mfiridwuma mu nkɔsoɔ so no, wɔhwɛ kwan sɛ plywood bɛnya nkɔsoɔ foforɔ wɔ adwumayɛ ne dwumadie mu, akɔ so de ano aduru a ɛyɛ adwuma yie na ɛho ka sua ama nnwuma ahodoɔ.
