Tebulo Wothandizira mu Petra, wopanga amasakaniza marmala ndi chitsulo m'kapangidwe kotengera makonzedwe a zodzikometsera. Pansi pa tebulowo pali cholemera chofananiza, chopangidwa ndi marmala, kuti chikhazikike. Pamwamba pake, pamwamba pozungulira, popukutidwa pumasonyeza mizere ya marmala. Wopangayo adalumikiza magawo onsewa pogwiritsa ntchito riboni ya chitsulo yocheka ndi laser yozungulira m'malire, yomaliza ndi mkuwa wachikasu, mkuwa kapena zokutira za ufa, nthawi zonse yogwirizana mtundu ndi marmala wosankhidwa.

Dzina la polojekiti : Petra , Dzina laopanga : Luciano Santelli, Dzina la kasitomala : Luciano Santelli.

Werengani mafunso aposachedwa komanso zokambirana pamapangidwe, zaluso ndi luso pakati pa mtolankhani wa mapangidwe ndi akatswiri otchuka padziko lonse lapansi, akatswiri ojambula ndi olemba mapulani. Onani mapulojekiti aposachedwa komanso mapikidwe omwe adapambana Dziwani zatsopano pazapangidwe, nzeru, zaluso, kapangidwe ndi kapangidwe kake. Phunzirani zamapangidwe opanga opanga zazikulu.