Abazamuye igorofa bahimbwe mu buryo butandukanye bwibikoresho, buri cyatoranijwe kugirango yuzuze ibisabwa byihariye. Ibyuma bito ni ibikoresho bikunze gukoreshwa muri rusange - Porogaramu.
Abaziza amasoko biteraga cyane mu maboko yo hejuru - ibikoresho byiza kugirango birebe imikorere yizewe no kuramba. Icyuma cya karubone nikintu gikoreshwa cyane, akenshi mumanota nka 65mn cyangwa 70, gishobora kuba ubushyuhe - kuvurwa kugirango wongere imbaraga nubushake bwananiranye.
Hebei Fujinrui Icyuma Cyuma Co., Ltd. yashinzwe mu 2004 kandi iherereye mu mujyi wa Hebei. Isosiyete ikubiyemo ubuso bwa metero kare 10,000 kandi ifite inkoni y'abantu barenga 200. Numushinga winjiza ibicuruzwa byihuse umusaruro wibicuruzwa hamwe nicyuma cyo hejuru yicyuma, hamwe nitsinda ryikoranabuhanga rikuze. Imyaka irenga 20 yuburambe munganda zihuta.