PVC iwiri khoma corrugated chitoliro ali ndi dongosolo wapadera, mkulu chitoliro mphamvu, yosalala ndi wosakhwima khoma mkati ndi kukana yaing'ono mikangano, amene angapangitse otaya buku lalikulu. Panthawi yomanga, mazikowo safunikira kupangidwa ndi maziko a konkire, omwe amatha kugwirizanitsa ndi maziko aliwonse; Kulemera kwake kumakhala kopepuka, kugwirizira ndi kunyamula kumakhala kosavuta kwambiri, ndipo kumanganso kumakhala kosavuta komanso kofulumira; Mipopeyi imagwirizanitsidwa ndi socket ya mphira ya mphira, yomwe imakhala yolimba komanso yodalirika, ndipo khalidwe la zomangamanga ndilosavuta kutsimikiziridwa; Mawonekedwewa ndi osinthika, olimba kwambiri komanso amatha kukana kukhazikika kosakhazikika!