ʻO ka pā kila kalapona kahi ʻano o ka pā hao kalapona haʻahaʻa, he palupalu loa, maʻalahi ke hoʻohālikelike ʻana i ka hana ʻana, A36 carbon structural steel plate ma lalo o ka hana paʻi, kiʻekiʻe ka lōʻihi, a ʻo ke kumukūʻai ʻoi loa ka mea i hoʻohana nui ʻia nā huahana kila wela. ma ka oihana kukulu.ʻO ka huahana hope loa ʻo ASTM A36 he ʻeleʻele a maʻalahi ka mīkini.no ka hana hou aku.