Nā mea piliKe kila kila, ke kila kalapona, ke aluminika, ke keleawe, ke keleawe, ke kila kila a me ke kila galvanized etc.
ʻOihana piliʻO ka ʻimi ʻaila, ke kākoʻo alahaka, ka pahu hao kila, ka hale kila, ka hoʻomalu ahi, nā pahu metala, nā mīkini mahiʻai, ka hana paipu etc.
Nā ʻano o ka ʻoki ʻana i nā paipuPupu poepoe, paipu huinahalike, paipu rectangular, paipu oval, paipu OB-type, paipu C-type, paipu D-type, puhu triangle, etc (ma'amau); Ke kila angle, ke kila ʻauwai, ke kila ʻano H, ke kila ʻano L, a pēlā aku (koho)