ʻO ka nānāʻana ma mua o ka hopena o ka hoʻomaʻamaʻa wela he kaʻina hana e nānā ai i ka maikaʻi o ka huahana a me nā dimensions e like me nā kūlana loea.Ua makekiʻi a me ke kāleka kaʻina ma hope o kaKākaupau ke kaʻina hana. Pono e nānā pono i nā hiʻohiʻona kiko'ī i nā mea aʻe:
①Pono keʻano o keʻano mai nā cracks,ʻaʻohe kaʻa kaʻa e lele ana i ka hanaʻana i keʻano o ka maikaʻiʻana o ka maikaʻi, a me nā mea maikaʻiʻole a me nā hewa.
②Ke kiʻi nui oUa lukupono e hōʻike i nā'āpana nui, nā'āpana likeʻole, nā'āpana āpau, nā'āpana'āpana,ʻano a me nā wahi o nā lua.

③Ka nui a me ka pololei oUa lukuE hōʻike i nā'āpana wela e hōʻikeʻia i kaʻae machining, ka paʻakikī o ka papa, kahi kūpono kūpono, ke kūlana pololei a me keʻano kūpono.
④nā mea nānā e like me ka helu oUa lukuʻO BANCH 10% -20% E nānā i ka nānāʻana ma lalo o ke kaomiʻana, i ka wā o ke kalaʻana o nā wahi e pili ana i ke kaʻina hana. ʻO nā kala e nānāʻia e kūleʻaʻia ma mua o ka piʻiʻana o ka piʻiʻana.
⑤Ma mua o ka piʻiʻana, e nānā i ka pale waiwai o ka huahana i hoʻopauʻia, 1-2Ua kalaʻiapono e kauʻia no ka sampalingKākau"Sampling" sample, e hōʻike i kaʻokoʻa.
⑥Ma hope o ka nānāʻana, ka nui o nā huahana i pau, ka helu o nā huahana o nā huahana hou, pono ke piha ka helu o nā huahana hope loa, a hoʻopaʻaʻia e ka mea nānā.