ʻO ka zincalume steel coil coating composition he 55% aluminika, 43.4% a me 1.6% silicon i ho'ōla ʻia ma 600 ℃. ʻO Zinalume steel coil (bobina de galvalume) he nani keʻokeʻo kālā keʻokeʻo.
Hoʻohana nui ʻia ʻo Galvalume coils i ke kūkulu ʻana, ʻoihana māmā, nā kaʻa, nā mea pono hale, nā uila, ka mahiʻai, ka mahiʻai holoholona a me ka lawaiʻa, nā mea kūʻai aku a me nā ʻoihana ʻē aʻe.ʻO ka nui o kāna ʻai ʻana he ʻelua ʻāpana: nā ʻāpana kila galvalume waiwai a me nā coils galvalume prepainted.I nā makahiki i hala iho nei, ua ʻike ka kaʻa, ke kūkulu hale, nā mea hana hale a me nā ʻoihana ʻē aʻe o Kina i ka ulu wikiwiki ʻana o ka noi no nā huahana galvalume, ʻoi aku ka wikiwiki o ka hoʻomohala ʻana i nā hale kukui, ka piʻi ʻana o ka makahiki o ka puka kaʻa, ka laha nui o nā mea hana hale, hui pū. ʻO nā ʻoihana ʻoihana, nā mea uila holoʻokoʻa, a me ka nui o nā huahana uila i lawe ʻia i waho, no laila ua piʻi wikiwiki ka hoʻohana ʻana i nā coils galvalume/aluzinc.Ua ulu wikiwiki ka hana kūloko o nā huahana galvalume i nā makahiki i hala iho nei.