ʻO ka uhi huahana i nā ʻāina he nui, Ukraine, Moldova, Romania, Georgia, Turkey, etc.
Nā huahana kiʻekiʻe a me ka lawelawe hoʻokahi.
Hoʻokumu ʻia ka lāʻau lāʻau kila coil ma ke anu i ʻōwili ʻia, galvanized plate, alumini zinc plate e like me ka substrate, me ka hoʻohana ʻana i kahi kaʻina pena kūikawā, no laila e hōʻike ana kona ʻili i ke ʻano kumulāʻau lāʻau maoli.