Icyitegererezo GB 4-Tandem (2/6-Tandem) Ingoma Yabajije Ibyiza Ingoma Zigizwe n'ingoma zingana, zirashobora kugenzurwa Imikorere yo kugenzura igihe cyose cyakazi, imbere & inyuma yo kuzunguruka. ni byiza cyane cyane kugereranya abasohokana batandukanye muburyo buto nubwoko bwo gukora uruhu.
Igice cyingenzi gikoreshwa cyane muri tanneries, ingoma yimbaho hamwe nubwicanyi bwubatswe cyangwa imbaho zuruhu. Uruhu rushobora gutunganywa icyarimwe mubice biri mu ngoma. Iyo utwarwa nigikoresho cyo kuzunguruka, uruhu rwingo rwingo rukomeza kunama, kurambura, gukubitwa, kwihutisha inzira ya mashini, byihutisha inzira yumutima kandi ihindura imitungo yumubiri. Urutonde rwingoma rutwikiriye uburyo bwinshi bwo gutunganya ibintu bitose
