ʻO nā hana pololei no ka hana koi
Ke hoʻohana nei i ka ʻenehana roll-forging holomua, loaʻa kēia hoe i ka ratio ikaika-a-kaumaha. ʻO ka pauka polū/ʻeleʻele i uhi ʻia e pale i ka abrasion, a ʻo ka puka maka maʻamau e hōʻoia i ka hoʻohālikelike ʻana me nā lima lāʻau paʻa. Hoʻopaʻa ʻia kēlā me kēia ʻāpana no ke kūlou ʻana a me ka pale ʻana i ka hopena.
