ʻO nā ʻāpana i hana ʻia me ka kila kila CNC ʻaʻole ʻino ke hoʻohana ʻia i nā wahi wai a me nā mahu ma lalo o 1200°F (650°C) a me ka wela ke hoʻohana ʻia ma luna o kēia mahana. ʻO nā mea hoʻohui kumu o kēlā me kēia nickel-base a i ʻole ke kila kila he chromium (Cr), nickel (Ni), a me molybdenum (Mo). ʻO kēia mau mea hoʻohui kemika ʻekolu e hoʻoholo ai i nā hale palaoa a me nā waiwai mechanical a e lilo i mea hana i ka hiki ke hakakā i ka wela, ka ʻaʻahu, a me ka ʻino. Ma muli o kona ʻano kino kū hoʻokahi o ka pale ʻana i ka corrosion a me ke kūpaʻa wela, ua kaulana nā ʻāpana mīkini ʻenehana CNC i ka nui o nā noi, ʻoi aku ka poʻe ma nā wahi paʻakikī. ʻO nā mākeke maʻamau no nā ʻāpana mīkini kila kila, ka aila a me ke kinoea, ka mana wai, ka lawe ʻana, nā ʻōnaehana hydraulic, ʻoihana meaʻai, nā lako a me nā laka, ka mahiʻai ... etc.