Pepala lopangidwa ndi chitsulo limatanthawuza pepala lachitsulo lokutidwa ndi nthaka ndipo lili ndi kukana kwa dzimbiri, lomwe limapangidwa makamaka ndi njira yothira galvanizing yotentha.M'zaka zaposachedwa, chifukwa chakukula mwachangu kwachuma, kufunikira kwazitsulo zamagalimoto m'mafakitale amagalimoto, zomanga, zopanga, ndi zida zapanyumba kwakula kwambiri.Mapepala okhala ndi malata ndi amodzi mwa mitundu yachitsulo yomwe ikukula mwachangu ku China m'zaka zaposachedwa.
Zinki wosanjikiza wa otentha choviikidwa kanasonkhezereka zitsulo ali makulidwe yunifolomu, zomatira mwamphamvu, palibe peeling pa processing, ndi kukana dzimbiri bwino.Pamwamba pake ndi yosalala komanso yoyera, kukula kwake ndi kolondola, pamwamba pa bolodi ndi mowongoka, ma spangles ndi ofanana komanso okongola.