1.4539 PLATE, maikaʻi o ka paleʻana i ka maʻi maʻi. Eia nō naʻe,ʻo ke kūpaʻaʻana o kēia papa e hoʻopau i kēia papa i lalo i nā kiʻekiʻe kiʻekiʻe,ʻoi aku ma mua o 400¡Ãc. Astm A240 URD N08904 He mea hiki i ka hopena wela ke hoʻomehana i ka wela ma ka 1090-1175¡ãm75¡ã.C i ukaliʻia. Kūpono ka hana wela no ka paʻakikī. 1.4539 sheet i hoʻohana nuiʻia i kaʻaila e pili ana i nā lako hana, plup a me nāʻoihana hana hana, nā mea kanu scarbbing, etc.