Zigawo za thanki ya Fiberglass zimapangidwa m'mafakitale opanga ndi kukakamizidwa kapena "kukakamizidwa" kuti athe kuloleza mayendedwe amsewu, operekedwa kwa makasitomala antchito komanso osakanikirana. Matanki oterowo amatchedwa "akasinja othandizira"