Hoʻopaʻahe mea hana a hakahaka paha i loaa maihoʻohalahala ʻanao na bila metala. Hiki ke hoʻololi ʻia nā ʻano mechanical o nā bila metala ma ke kau ʻana i ke kaomi e hana i ka deformation plastic. Hiki ke hoʻokaʻawale ʻia nā forgings i ke anuke kalaiwa anapumehana forging and welake kalaiwa anae like me ka mahana o ka billet i ka wā e hana ai.ʻO ke anu anuanuhana maʻamau ma ka lumi wela, ʻoiaihoʻopaʻa welahana ʻia ma kahi mahana recrystallization ʻoi aʻe ma mua o ka billet metala.

1, ʻoihana nuinā kalaiwa, e pili ana i ka mīkini hana hana, nā mīkini mahiʻai, nā mea hana mahiʻai a me nā ʻoihana halihali a me nā ʻoihana kīwila ʻē aʻe.
2. Forgings no ka hydrogenerator, e like me ka spindle a me ke kumu waena, etc.
3, nā mea kanu mana forgings, e like me ka rotor, impeller, apo spindle, etc.
4, nā mīkini metallurgical, e like me ka ʻōwili anu, ka ʻōwili wela a me ka miter gear shaft, etc.
5, nā kalaiwano nā ipu kaomi, e like me ka cylinder, kettle ring flange a me ke poʻo sila.
6, Moananā kalaiwa, e like me ka crankshaft, tail shaft, rudder shaft, thrust shaft and intermediate shaft, etc.
7, ke kalaiwa ananā lako mīkini, e like me ke poʻo hāmare, ke koʻokoʻo hāmare, ke kolamu kaomi hydraulic, ka pahu pahu, ka huila a me ka pou mīkini paʻi a me ka pahu pahu.
8. Module forgings nui forging make no ka wela make forging hamare.
9, ka automotive oihana forgings, e like me ka hema a me ka akau knuckle, mua kaola, coupler, e like me ka 'ikepili i loko o ke kaʻa, forgings helu no 80% o kona maikaʻi.
10.Hoʻopaʻano nā locomotives, e like me nā axles, huila, puna puna, crankshafts o locomotives, etc. Wahi a ka helu, forgings helu no 60% o ka maikai o ka locomotives.