Whiteboard (Bolodi Yotsatsa)

Amatchedwanso malata makatoni. Amapangidwa ndi pepala lokhala ndi malata osachepera limodzi ndi bokosi limodzi (lomwe limatchedwanso bokosi), lomwe limakhala lotanuka komanso lotambasuka. Amagwiritsidwa ntchito kwambiri popanga makatoni, pakati pa makatoni ndi zida zina zomangira za zinthu zosalimba. Amapangidwa makamaka ndi udzu wamba zamkati ndi zinyalala pepala pomenya kupanga choyambirira makatoni ofanana chikasu makatoni, ndiyeno adagulung'undisa mu corrugated mawonekedwe kudzera makina processing, ndiyeno n'kumangiriridwa ndi bokosi pepala ndi zomatira monga sodium silicate pa pamwamba.

Ma corrugated corrugations of corrugated cardboards ali ngati zitseko zolumikizidwa za arched, zomwe zimakonzedwa motsatizana ndi kuthandizirana kuti apange mawonekedwe a katatu. Ili ndi zotsatira zabwino; imatha kupangidwa kukhala mapepala kapena zotengera zamitundu yosiyanasiyana ndi makulidwe malinga ndi zosowa, zomwe zimakhala zosavuta komanso zachangu kuposa zida zapulasitiki; sichikhudzidwa kwambiri ndi kutentha, imakhala ndi mithunzi yabwino, sichiwonongeka ndi kuwala, ndipo nthawi zambiri sichikhudzidwa ndi chinyezi. Komabe, sizoyenera kugwiritsidwa ntchito kwa nthawi yayitali m'malo okhala ndi chinyezi chambiri, chomwe chidzakhudza mphamvu zake.