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Kodi mudayamba mwadzifunsapo kuti pulasitiki pepala zakuthupi imasanduka bwanji thireyi , mapanelo, kapena ma phukusi? Imayamba ndi njira yotchedwa thermoforming. PVC ndi imodzi mwa zosankha 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 PVC pepala zakuthupi s imawonekera m'mafakitale ambiri chonchi? Kuyambira zomangamanga mpaka chisamaliro chaumoyo, kusinthasintha kwawo sikungafanane. 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 ntchito zake zosiyanasiyana.