1.ʻO nā mea hana Mechanical: pili kēia i kaʻike e pili ana i ka ikaika o ka alloy, paʻakikī, ka paʻakikī, a paʻakikī. Hiki ke komo i nā waiwai e like me ka ikaika hope loa, hāʻawi i ka ikaika, ellingation, a me ka hopena hopena. 2.ʻAe nā waiwai: pili kēia i kaʻike e pili ana i ka hana a ka alloy o ka alloy, ka maʻamau o ka hoʻonuiʻana o ka'āina, a menio. ʻO kēia mau waiwai he mea nui no nā noi i kahi e komo ai nā loli wela a iʻole ke hoʻololiʻana i nā loli. 3.Cabrication prostities: pili kēia i kaʻike e pili ana i ka huiʻana o ka alloy a alloy, machiniblibliblity, a me ka machinilility. E hōʻike ana i ka maʻalahi o ka maʻalahi o ka allolo, hui pūʻia, a iʻole e hanaʻia i ka wā hana.