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Kodi mudayamba mwadzifunsapo kuti mapepala apulasitiki amasanduka bwanji mathireyi, mapanelo, kapena mapaketi? Zimayamba ndi njira yotchedwa thermoforming. PVC ndi imodzi mwa njira zabwino kwambiri pa izi. Ndi yolimba, yotetezeka, komanso yosavuta kupanga. Mu positi iyi, muphunzira tanthauzo la PVC thermoforming, chifukwa chake imagwiritsidwa ntchito, komanso njira zabwino zopangira.
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Kodi mudayamba mwadzifunsapo chifukwa chake mapepala a PVC amapezeka m'mafakitale ambiri chonchi? Kuyambira pa zomangamanga mpaka pa chisamaliro chaumoyo, kusinthasintha kwawo sikungafanane ndi kwina kulikonse. PVC yasintha kuyambira pomwe idapangidwa kumayambiriro kwa zaka za m'ma 1900 kukhala chinthu cholimba komanso chotsika mtengo. Mu positi iyi, muphunzira zabwino zake, zofooka zake, ndi momwe zimagwiritsidwira ntchito m'njira zosiyanasiyana.