ʻO ka ʻōpeʻa haki i hana ʻia ma 65 Mn, 60Si2Mn, 30MnB5 Boron Steel me ka mālama wela a me ka pena ʻana

Hana ʻia nā huahana a pau me ke kila boron kiʻekiʻe, ma hope o ka hana ʻana a me ka hoʻoponopono wela ʻana, e hōʻoia i ka lawa ʻana o ka paʻakikī o ka huahana a me ke kūpaʻa ʻana i ka ʻaʻahu. Hoʻokuʻu ʻia aku nā huahana i Rusia, Lithuania, Sepania a me nā ʻāina ʻē aʻe, ma hope o nā hoʻāʻo mākeke he nui ʻole e nā mea kūʻai aku, ʻo kāna hana pono ka papa mua.