Kahua koa:hoʻohana ʻia i ka hana ʻana o nā rockets, missiles, radar, nā pūpū mokulele, nā moku motorized, nā robots ʻoihana, nā puna lau kaʻa a me nā ʻau hoʻokele, etc.
Kahua kūkulu: sima i hoʻoikaika ʻia me ke kalapona fiber, pena alakaʻi, papahele anti-static, a pēlā aku;
Kahua hoʻomehana uila:pepa alakaʻi, pā hoʻomehana uila, ʻili alakaʻi i manaʻo ʻia, nila i manaʻo ʻia, moena alakaʻi, a pēlā aku;
Nā mea pale:ka hana ʻana i ka uahi pale, ka paia pale, a pēlā aku;
Nā mea hoʻomehana wela i hoʻololi ʻia e ka palakiko a me nā mea mālama wela: nā billet refractory i hoʻoikaika ʻia me ke kalapona a me nā piliki, nā keramika i hoʻoikaika ʻia me ke kalapona, a pēlā aku;
Kahua ikehu hou:ka hana ʻana i ka mana makani, nā mea friction, nā electrodes no nā cell wahie, a pēlā aku.
Nā waiwai haʻuki a me nā mea leʻaleʻa:nā kalapu kolepa, nā lako lawaiʻa, nā raketa tennis, nā raketa badminton, nā ʻau pua, nā paikikala, nā waʻa hoe, a pēlā aku.
Nā palakiko i hoʻololi ʻia i hoʻoikaika ʻia:nylon (PA), polypropylene (PP), polycarbonate (PC), phenolic (PF), polytetrafluoroethylene (PTFE), polyimide (PI) a pēlā aku;