Nā noi:
- ʻO nā pūnāwai naʻauao e koi ana i ka hana a me nā pono hoʻokele waiwai o nā mea hoʻokele kahe kahe mamao ma muli o nā kumukūʻai a i ʻole nā pilikia o nā hana a i ʻole hiki ʻole ke kākoʻo i ka ʻoihana ʻilikai e pono ai ma kahi mamao.
- Ka ʻāina, ka paepae, a i ʻole nā kaiapuni o lalo o ka moana.
Nā hiʻohiʻona, nā pono a me nā pono:
- Hāʻawi ʻia nā laina hoʻomalu i ka lōʻihi orbital-weld-free a hiki i 40,000 ft (12,192 m) e hoʻonui i ka hilinaʻi.
- Loaʻa ka laulā o nā ʻeke paʻa hoʻokahi, ʻelua, a ʻekolu paha.Hiki ke hoʻohui ʻia nā ʻeke palahalaha me nā uwea uila downhole a / a i ʻole nā uea bumper no ka maʻalahi o ka hana ʻana a me ka lawelawe ʻana i ka wā o ka hoʻolālā ʻana.
- Welded-and-plug-drawn production method e hōʻoiaʻiʻo i ka maʻemaʻe, poepoe paipu e hiki i ka lōʻihi metala sila sila o ka hoopau ana.
- Ua koho ʻia nā mea encapsulation e kūpono i nā kūlana maikaʻi, e hōʻoia ana i ka lōʻihi a me ka hilinaʻi.
Nā koho:
- Ka laulā nui o nā pāpaʻi paʻa hoʻokahi, ʻelua, a ʻekolu paha.
- Nā mea hoʻopili e kūpono i nā kūlana maikaʻi.
- ʻO ka paipu ma nā ʻano like ʻole o nā kila kuhili ʻole a me nā ʻāpana nickel.