ʻO ka pā kila calcium kekahi o nā pūʻulu calcium metala, e ka papa kiʻekiʻe kiʻekiʻe o ka calcium silicate papa ma ke ʻano kemika, a i ʻole ka enamel inorganic e kiʻekiʻe ka weatherability fluorocarbon alumini zinc steel plate a me kā lākou hui hui, hoʻohui ʻia e ka wela kiʻekiʻe a me ke kaomi, static pressure curing kaʻina hana, a ma ke kua me kahi papa o kahi pani, ka makū, e hoʻoikaika i ka hana o ka lole i uhi ʻia.ʻO ke kila calcium pāpaʻi kūʻokoʻa, loaʻa i ka nui o nā patent aupuni, he ʻano palekana o ke kaiapuni, mālama i ka ikehu mea hou, hoʻohana nui ʻia ia i ka tunnel, subway, airport a me nā mea ʻē aʻe o ka lawe ʻana i ke ahi a me ka pale aupuni.