Dongan yekuvaka sheet simbi yakavezwa yekushongedza sandwich panel, imhando yezvinhu zvitsva zvekunze zvekuvharira chivakwa uye kushongedza, izvo zvinofarirwa nevakawanda uye vanovaka vavaki. Iyo yemukati ine zvinhu zvakasiyana-siyana zvine density yakakwira, senge pu, eps, pir zvichingodaro. Iyo yepamusoro ndeye AL-ZN alloy yakavharwa simbi sheet. Uye yekudzivirira, kusapinda nemoto uye kunyorova, zvinhu zvepasi zvinotora aluminium foil layer, iyo ine mashandiro akanakisa pakudzivirira uye kunyorova.
